Hi, well, I was facing the same dilemma a couple of weeks ago 8 or 6 lugs. As it so happens, Venezuela is Toyota country and most are 6 lugs, so I chose to go 6 lug versus 8 (way beefier, cause i HAVE seen wheels roll by their vehicle after the lugs gave out, 6 lug yotas). Even so, i chose 6 because out in the jungle, or trail if i need a 2nd spare tire for whatever reason, that compatibility might be just what saves me or strands me. Also, I can get the stock 35 spline shafts for the rear with a 6 pattern adding about 1.18 inches (compared to stock) making it a direct bolt on spare if need should ever arise (im building 2 D60s now for my XJ).
Post some pics when you're done! Good luck.