I would say a 7A would be way easier than a stroked 4A.Mate that is an absolutely stunning car and lovely build.
Im building a car not too dissimilar at the minute and im weighing up my engine options. Currently they are between a stroked 4AGTE or some sort of 7AGTE (either 20v head or 16v head). In regards to the head is the 20v any more difficult than the 16v to fit onto the 7A. Also is there any sort of match between the bolt holes or does everything have to be custom or re-machined?
Also what size rims do you run? I have 225/45-15's with semi slicks that will go on the car for racing but a mate says that there is no way that 15's will put 350whp down properly even with a 3.9 diff. He says i need at least 16's but i dont really want to go that big.