If you go to ( or call ) a nut and bolt dealer they can usually direct you to a local bender..try a truck parts dealer, that`s where i got mine made while i stood there, for just less than $60. and since you can hold them up to the original there`s no guessing if they will fit.
the lowering blocks can usually be purchased locally also ,,because they use them to lift trucks.. So having a double use they sell alot of them,,which means the blocks are usually on the shelf.