Windshield is usually first change then followed by seat. You need to get the right seat first then make the right decision about the shield type and height. Lots of us here have multiple seats and shields
as a result of all the experimentations. I am 6-5 with a 36 inch inseam. Settled with Baggershield adjustable with Ultimate King seat and ergo 3 pegs. Great adjustability with this set up. You are going
to get a ton of us with different exceptions to my set up, but each person is different