This RX-7 owner wanted a LS6 motor swap but instead got a very expensive lesson. Engine swaps are not cheap so make sure you money is being spent at a knowledgeable shop. Do a little homework on shop’s reputation and quality. Make sure they have completed the exact same swap you want or at least has a history of similar swaps that would allow them to take on a specific swap for the first time. In the end I am glad a competent forum member stepped up and was able to fix it.