Consider buying some long bolts to use as guide studs and hold your gasket in place during assembly/disassembly. I bought some 91280A358 100mm long 6mm diameter x 1.0mm pitch bolts from McMaster.com for the purpose. You get 25 of them for $10, plus $6.50 shipping. Chop the heads off, dremel in a screw slot and there you go. It takes about a minute a bolt.
McMaster often gets stuff to me in 1 or 2 days, but I am close to their Atlanta facility - 240 miles.
I could not find any bolts long enough at the local sources to do any good.
One guy took his stator off to avoid the magnetic grab and bind that is a factor here, but he was doing some trial and error stuff with his clutch. If you are going to do any trials, don't use your new gasket until you are satisfied with everything inside, and any testing is completed.
Speaking of which, is your clutch healthy? Satisfied with it? Now would be the time...
Have you rolled the engine over by the wheel to verify that it is not locked up? Might as well do the due diligence.
Your parts list looked right to me (who has never worked on a Vic starter). It's what I would start with. Though if I could afford the downtime, I would have torn it apart to see what was actually broken before ordering any expensive parts (no idea what you spent.)
Lastly someone wrote some notes on clutch replacement, thought it may have some application here. https://www.victoryforums.com/showthread.php?t=11529
Other posters have indicated, in other threads, that the 2" bolts were too short to help much with guiding, though they did hold the gasket in place, hence my 4" long bolts.