Hey Shawn, Chief Delphi has a section made especially for this type of request called "CD swap" here:
http://www.chiefdelphi.com/forums/parts.php?
Try there. Also try to be more specific about what motors/transmissions you are looking for. I am assuming the CIM motors and 56mm transmissions that came with the kit? One more suggestion, see what your team has that you might be willing to give up, whether it be a service or a part, that will make another team more inclined to give up what they have.
Good luck!