It looks like I am a little late but here are some pics of the 305 55 20s NITTO

[H3 Buyer to be?]

http://store.h2outfitter.com/mkwstm18hubc1.html

Here is the wheel I went with in the 20" with the Nittos! This truck is VERY HARD to fit for wheels... You will need a 20x9 wheel with a positive 30mm offset, and a 100mm center bore. There are about 10-20 styles available now, I am sure wheel companies will make some changes soon.