I like the look of those style of rims also. The problem I find with rims that are open like is the gravel rocks get in more often and jam up a tire on me. Happens real often with the smaller 1/10th scale rcs but happens to the 1/8th also. It would help to not run in the gravel but that's 70 percent of the places I bash.
I run the regular mt badlands on my STRR truggy. They work good for what I do.
http://www3.towerhobbies.com/cgi-bin...?&I=LXNKS3&P=7
The rims you linked to above are for low profile tires. You might be able to stretch the mt badlands over the rims. I don't think they make a low profile badland tire.
I haven't owned a set of Truggy tires. They just looked too narrow to me. Can't comment on the body fitting for you.