Thought of that first and it can be done but i was worried about sidewall flex and rollover . Rocky mountain had some but i went with bigger rims and tires. I would guess anyone with ATV tires would have something. Only problem is 8" rim is kinda used on smaller ATVs
I recommend 23" maxxis bighorn 2.o's. on 12" rims. they really help with ground clearance, and they are pretty light. If you can find a tire the size you want with that rim size it would work though.