Great reply, yeah I was seeing the oil pressure issue mentioned a lot with those engines. Since I am having to source and swap an engine anyways sounds like my best best would be a gsf 1200 from the start then. Which was where I was leaning anyways based off of digging around on here.
I don't have any turbo bike experience but I've built a number of boosted drag cars. I am HIGHLY considering going EFI from the start because I am much more familiar with tuning it versus tuning carbs and would save a lot of hassle I believe in long run compared to getting into the carbs constantly to change jets, needle height, etc.