The trinity brace should fit, those cars use alot of the same parts.
The XX4, with good driving and proper maintenance will reward you with a great handling vehicle. Not the easiest to work on, but alot cheaper than most other 4wd cars.
Mods that I did - custom front brace, 86 spur, 8-32 set screws in the front bulkhead to secure the hinge pin ( no more e-clips). I did split the top plate but found that it allowed the chassis to flex qutie a bit but only in one direction.