What size tyres are you putting on them? I have no wheels but if they are 31x10.5 you can get away with 7" wide wheels too. I did on my baja and they worked fine.
surely there is a place that make wheels up north, i paid $132 each to have my wheel centers cut out and welded into brand new 15x8 chrome rims, think it was 13$ cheaper without chrome, thats ajax wheels i moorabbin vic if anyone else is interested..