Well, Ive pretty much given up on this idea. I tried some other 2.2 wheels, and everything seems to come close to fitting, but interfers with the knuckles by a little bit. I would try dreemmling off some of the knuckles, but Im scared of the reduction in strength that would cause. I decided on 1/8 buggy wheels instead, because I can get a more off road oriented tread than my KLPs, without the weight and gearing issues of stock maxx sized tires (which is what I was trying to accomplish with the ST tires and wheels). Ive already ordered the adapters and a first set of buggy wheels and tires.
Thanks for all the help.