In the past day you have posted that first you were interested in a big bore kit, then asked questions about cam selection, to now having it ready to tune. Really......
If you want a big bore kit and you are serious about this then get a good combination from Hammer Performance or similar professional builder who specializes in Buells. You need a package because with a 90 you are looking at big head work, intake work, exhaust work, cams, etc and increased need for fueling. To begin with I would turn off your closed loop and run a mixture 10% richer then what you have to be safe.
If you are dragging it I would run XB9 primary, strap the front, and try to keep that front end down. Your holeshot is going to be hard with the short wheelbase and high tq.
As far as finding a tuner. Good luck. Probably better off getting a wideband and doing it yourself. Define Midwest. Where are you?