Hard to find Late model 1984 to 1985 xlx1000 cases. If I didn't mind switching to a older generator style model would a 1980 xl case bolt right into my frame, and everything line up properly?

 

Go to Ronnies Parts Finder and compare the part numbers on:

Frames
Cases
Mounting bracket

As an EXAMPLE
Not saying it will or won`t fit

 

sportsterpedia has a lot of info.
xlforum is where you need to be