I was going to add that one of the drawbacks of the Shen Hao is the need for a recessed board with wide-angle lenses. A 90mm with a recessed board is probably about the shortest it will take. I like my Super Angulon, but it sounds like this will be less of an issue for you.
Depends on which model.
I use a 72mm on a standard board on my XPO with (Sinar) bag bellow. Also use a 210mm with the same bag. My XPO will also extend to 400+mm.