La-7 as a perk plane ???
How many Ta-152s and P-51Hs have been produced before the end of WWII ? Because I don't know for certain but I have like a 99.9999(9)% confidence that many more La-7s have been produced than those exotic planes.
Let me compare the numbers with widely available in the arena 109G10 (I assume those are with DB605AS, not DB605D engines).
So, numbers for La-7:
In June 1944 VVS received 57 La-7s, in July 108, in September 225, in October 379 etc.
Since the start of mass production till the end of the war 4359 La-7s were received by VVS (from "Aircraft Construction in the USSR" by K.Yu.Kosminkov, Central Aerohydrodynamic Institute (TsAGI) publishing department).
Now, there have been around 2600 109G10s produced since the start of mass production (which is, BTW, October, not June!!) 1944 till the end of the war (estimate from "Bf109 F,G,K series" by Jochen Prien & Peter Rodeike, Schiffer Military History publishing).
I want the La-7, but not as a perk plane, as it's simply historically UNFAIR.
If we are to have a Soviet perk plane then it has to be, say, Yak-3M with VK-107A giving it top speed of 720km/h and armed with 2 20m B-20 cannon.