You said you were going to add a "quick link" to drop the block lower. So I was thinking the more distance you put between the davit arm attachment point and the block, the further out of plane the block can swing. But looking at your set up, I'm guessing you'd never want the davit to be able to swivel anyway because the motor enclosure would contact the house, so my idea isn't really applicable. And since the davit is already out of plane with the hauler plates, a little extra length between it and the block will probably work to your favor anyway. I doubt you'd even notice 7/8" misalignment and my guess is that the gypsyhead may be more forgiving with line angle than the hauler fairlead, so it's going to work fine too. Bet its all going to work out great for you.
Yeah the quick link I just might need to further midget size the davit, ie lower the block, I installed the davit as high as I could possibly stand to have it. Quick link would lower the block for us us vertically challenged folks. But I don't think that will impact the clocking of the setup, if anything might let the block swing over and self align better.