If the USN is ever going to increase the numbers in it's Carrier Fleet back to 80s or earlier levels, a little radical thinking might be required. Ships like these could be built in whole or in part at a number of shipyards around the US, whereas the CVNs are tied to one yard. Just remember two these... For less than one of these.
I agree wholeheartedly. A CVN is too much ship for a lot of missions. And with only 10-11 that doesn't mean many available worldwide either. A CVF turning up off someones coast has just as much effect in peacetime as a CVN. In war 2 CVF would be more survivable than a single CVN.
The reduction of reliance on 1 yard would also be an important factor. But in terms of cost I think you're a little off. The cost of Prince of Wales is c£2.5bn in reality, the £1.65bn of additional programme costs added due to political delays and F-35C could be discounted. Also the lessons learned from QE have reduced the cost and time to construct. Take those lessons forward in to a USN CVF build and build 6 of them and the cost could be kept at £2.7bn ($3.5bn at current exchange rates) including EMALS and AAG in a CATOBAR configuration (that includes the design work necessary as well).At most, with all the US bells and whistles (different radar, missiles, anti-torp defences etc) at most it would be $4bn. At that price you're looking at 4 CATOBAR CVF for the price of 1 Ford Class in cost to build. If you factor in the crew manning necessary a fairer comparison would be 3 CVF to 1 Ford Class (1600 per CVF, 4800 per Ford). Comparing 4 CVF to 1 Ford Class would actually be fair on a long term basis as the cost of the nuclear powerplant will add huge costs over the lifetime (and decommissioning) but you're essentally doubling the airgroup as well at that point. Also there would need to be some additional funds set aside for tankers and stores ships.
The USN would be best served by only keeping 9 CVN. 8 for the Pacific Fleet, the vast distance means the nuclear powerplant adds something there, to face off to the Chinese, who are far the biggest threat going forward. 1 CVN on the East Coast to keep the nuc berths open (probably a CVN on post refit workup or training). They could then purchase and run 6 CATOBAR CVF for the same cost as 2 Ford Class. Those CVF could easily cover the Atlantic, Mediterranean, Carrier Quals and the Red Sea/Persian Gulf/Indian Ocean in conjunction with the QE Class and CdG. Alternately they could have 6 CVN in the Pacific Fleet, with 3 additional CVF forward based at Yokosuka, Guam or Singapore. The 3 remaining CVN and 3 CVF could work out of the West Coast. The net result would be a sustainable and cost effective increase in hulls, with no increase in manning. Forward Deployment could be returned to, with the added benefit of the less costly CVF being closest to the threat with the CVN's being a reinforcement. Sort of a 1st Class Carrier division. If the USN wanted to be really cute they could load the CVF with F-18E/F and retain the F-35 and MQ-25 to CVN's only.