ORIGINAL: saltlife
HPI makes a deep dish rim with 17mm hubs that will fit right on,,, but you will probily have to take off the dust gards so the wheels can turn. That would get you bashing around the back yard, but I would spend some more time and money if you want to use it for more than that.
I put some tire on my Hyper 7 that came off of a savage XL and I didn't have to changa anything. They fit just fine but they are a bit narrower than regular truggy wheels but I did get the same ground clearance that you would get from truggy wheels. here are some pics.
buggy wheels
