One thing I've always wanted to see was how a Chinese army equipped and trained to Napoleonic standards would be done, particularly in term of standardized artillery and such.
That's true. One problem with imperial China was always the central government was almost never able to tax sufficiently or efficiently, on a scale necessary to raise, equip and supply a powerful national army the size of Napoleonic armies. The Confucian bureaucrat gentry class, with their laissez-faire minimal taxation ideology mostly resisted imperial efforts to levy the resources necessary. Confucians argued with the rhetoric of humanism but actually safeguarding their own class interests (they were the main landowners). Example, burning of Zhen He's fleet. Even when the nominal tax rate was high, the limitations of technology (mainly transportation and communication), the vastness of the country (which amplified the technological limitations), limited the ability of the central government to collect taxes efficiently. One example, an accurate census was absolutely necessary for efficient taxation. It took several decades to conduct a complete countrywide census. It wasn't practical to conduct census more than once each dynasty at the founding of the dynasty. Usually by the time a census is complete, the information is already outdated, and if the dynasty last several centuries, well, you see the problem. With inaccurate census, the government can't adjust tax burden the areas that had significant population movement (due to natural disaster or conflicts), leading to more rebellions and falling income.
I really don't think it was possible to govern a country the size of China with the efficiency of Napoleonic France without 19th century technologies like telegraph and railroad. And even with the right technologies, China would still need something like the Meiji Restoration to smash the power of the gentry class and to have a powerful centralized government.
One simple question.
Are we talking about ancient China or China as of now? I mean... if we are talking about ancient China as of from the Qin era onward... say Ming Dynasty... all these occurs wayyyyyy before Napolean. So you are comparing a more or less more modern military to an ancient one. You might as well throw in Germany in Second World War and wonder how Napoleon army could reach the standards of German army in Second World War.
And if we are comparing China's old imperialistic military like in the Qin dynasty to the Ming or even early Qing Dynasty, you will find that she was not half as bad as any of the military in that time period... and maybe better in many cases.
Able men always rises to the top, especially in times of social chaos. Ancient China had plenty able generals, but no great man can overcome the far more powerful forces that governed his place and time. At best, able men can latch onto the prevailing tread and do his little bit of service to march of history.Its not just size that would have played against China in the late 18th early 19th century having armies like the grand armies of the republic, the French revolution had caused massive changes in the organization, strategy and doctrinal concepts of the French army as royal and noble heads rolled in the streets. Remember a lot of those Nobles had been top leadership so the French army was reorganized massively to make up for that loss the result was both good and bad but eventually much of the cream rose to the top. For example the young French republic during the early Napoleonic conflicts had the first black General officer, Cavalry General Alexander Dumas, who commanded French cavalry in the Egyptian expedition.
That said Napoleonic France was far from being the great nation its often romanticized into, the French had a poor navy, the wars sapped the French coffers which ironically had started was the actual cause of the French revolution in the first place. Par of the reason for the french expantion lead by the General was to fill the french treasuries with war bootie. The expeditions to Malta the Egyptian campaign were financial missions for gold and wheat. Napoleon though remembered for his great code of law stripped the rights of French blacks, he also played a key role in helping maintain French Haitian sugarcane plantation slavery which was a structure even more barbarous then American southern cotton based slavery. The Haitian slavery was they key money maker for France. Sugar was the 18th centuries oil. But Haitian uprisings constant fighting and the major European powers would end the great empire penny less with a population decimated and starving.