Shafts should be 1.5”. Rudders 5”. Trim tabs 2.5 or 3”, either should be fine. Bonding plate on back of boat 6x12”. Engine exchanger for crusaders are likely 3/8”x2” and engine oil coolers likely 1/4”x1.75”. This is what’s on my 1989 35 with gas engines. You should double check that these all fit and that you do have 1.5” shafts. I recommend boatzincs.com. Good luck.
Safe cruising on your new boat. The Viking factory is still open and offers support. They just need the hull number and can tell you all about your new ship.