ebay

I am about to bag my s 10 and was wanting some different and bigger rims to go along with the new look, my buddy said that i should look on ebay for some rims. Now im not to big into what rims are good and what are bad but i did notice that there sure are alot of them that are on there for like 700 dollars and they are 22's. This is really cheap,,,,so i was wondering if it might be a scam or are they just really crapy rims. I dunno. Not only that but what size rim do you think that i can tuck without having to cut the wheel wells out on my truck. It hopefully will be sitting on the ground.