WJ brakes?

For those running WJ knuckles and brakes: are you running 15" or 16" rims? I know you can run 15" rims with the early style caliper with a little grinding on the caliper. If you do that you can't run the internal weights on the rim. I was just curious because I am getting ready to do the conversion and need to get new tires as well. If I go for the 315's I will need new wheels and the least expensive ones are the black crawlers from 4WP's for about $50 a wheel. Not to mention the 315's are a little more than 35's for a 15" rim anyway. Just trying to figure out what would be the best way to go and not have to spend a fortune. Thanks.

-Mike