Would that not cause the time and effort of production to approach levels of that if the PLA just simply build designs of existing IFVs but with improved armor.
You could but the result would be having to spend months to years on R&D. The aim here is to streamline the process with an off thr shelf situation. In other words it was already started with the Export VN11 IFV.
Call me a skeptic on this, but in depth armor modficiations would render whatever advantages offer by this new HIFV obsolete. The second choice would give the PLAN a IFV that is designed from the ground up as such.
By basing it off the existing suspension and automotive components they save over the course of the vehicles life by again harvesting from off the shelf.
New tracks? Check the bin. Yup brand new never used circa 1979.
New road wheels. Yup been in storage since the Sino Soviet split but still drives.
Sprocket? This thing was built before the wall fell.
That's how it saves for them.
Why bother building a brand new 35 tons tracked IFV chassis when you have a perfectly serviceable chassis system in inventory with thousands of rolling stock in good condition?
The Chinese built over 9,500 type 59 5000 in there own invantory That's an extensive supply chain and with the tanks still in service in some places around world there are still parts made.
The armor is a secondary concerns as it can be or rather would need to be changed. The only limitation is what weight the chassis can take.
So why spend the money on a specialized new chassis for an IFV and APC to give to secondary units when the same armor and protection can be supplied in an existing drive?
And that is something I keep saying because the resulting vehicles would lack Amphibious capabilities this seems better to the units facing say India. It would offer a relivtivly new vehicle that has been proven able to traverse the highlands yet at a over life cost savings.
Rather then spending on a totally new APC/IFV that may cause issues as the PLA moves to adopt a light tank off the same chassis.