I don't know how much I'll need to shorten the arms by, but I was thinking exactly the same thing this morning while at my kid's dentist appt. My rear struts are nearly topped out. I could make a spacer that bolts to the existing camber plate and lowers the top of the strut to clear the bottom of the plate, then just slide the top of the strut farther than it is now and maybe get the pos camber I need that way. I do have Ground Control plates, so they're not like the shitty ones that have 3/4" of adjustment that you get with BC coilovers or something like that.
I don't have any of the axles that I was having made back in the day, so I'd need to figure out the CVs. If I did something on the top end I wouldn't have to mess with that. Might have to cut back the plate on top that the roll cage is welded to.