Agreed, 595s run narrower, probably the same as NS II. Any tires can have de-beading issue, depending on size, model and how much you stretch them of course. 245/35 will only give you slightly stretch. If you plan to slam your rex, then you may wanna go 225/40, that will still give you the balance of stretch, safety and look on the 10", not to mention 225/40 has more cushion on the sidewall than 245/35 if you worry about popping. Hit me up once you decide your tire size, may be I can help.

Hints: I see tires everyday, lol

 

here's my s14

245/40/18 dunlop on 18x9.5 (Not much of a stretch)





my wagon
Here are my old Torq R's on 17x9 on 215/40/17 (hellaflush)



my wagon 18x8.5 on 245/40/18 (not flushed, i think its too wide)

 

Federal 595-evo in that 225/35/18 size seems about perfect. should be some decent grip as well