I agree with John. While a good shot who understands his shooting style and the fit of guns can compensate for guns that do not fit, he will never shoot anywhere near as well with an ill fitting gun consistently. You need to be able to shoot instinctively with little focus on the gun when in a hot spot. If the gun is shooting two feet under where you think it is at twenty yards, you will suffer from poor shooting.
Sometimes you find guns that are just about where you need hem to be and little or no adjustment is required. You will go through many before you luck out and find that one that works for you.
Getting a gun that is close and making final adjustments will have a good effect on your shooting. As others have said, drop is more important than LOP, which can be altered by extending or retracting the left hand.
As for buying an AYA..... well you all know my opinion there so I'll shut up now!