i've been looking at shortblocks from dss, mmr, and coast high perf, and i dont know who i should buy from. i have heard a lot of good things about mmr, and a little abot coast, but not so much about dss, and dss is the most expensive. but mmr has a layaway program that would help me out a lot. should i buy a shortblock from them, or buy all the parts for it and have it assembled elsewhere? im gonna be buying heads to have ported, an intake, cams, coils, wires, and an msd box, injectors, oil pan, oil pump, a tb, plenum, and some other stuff to build a whole new longblock, so i have a lot of stuff i need besides just the shortblock. i basically am building a whole new motor. what do you guys think?