Trying to assemble a 500" RB and I have two different sets of main bearings, King HP's & Speed pro 's. The King MB5116HP's (STD) are at .0025" and the Speed Pro M119 are at .0040". I would like to be at .0030"-.0035" The most logical solution would be a a set of King STD X's, but I can't find anyone that has them. Any suggestions?

Thanks, Brian