im going to be buying the megs deep crystal 1 and 2, and im going to use them along with 2 coats of nxt wax. I want to buy locally, does the deep crystal 1 and 2 do a good job or should i buy other products locally? (wal-mart, autozone, napa) and is there a good wax to put over the nxt. I want some good prep products to bring out a nice reflective shine.