> Can i hook a 2ch radio into a watertight container and hook up hte motors from the wally sub to the scratchbuilt sub? I was thinking i >would make a dynamic diver.

I'm not sure I get you. You mean take a 2-channel r/c receiver board, place into a watertight capsule, and put it into a kit hull or PVC pipe?

Two channels might be pretty limiting, but I guess you might try creating a dynamic diver with forward/reverse and left/right functions--then make it diving by giving it enough of an at-rest downward angle that when you engaged forward drive, it naturally dove; and when drive was stopped, it floated back toward the surface. You might make use of fixed-fin angles to achieve this two-channel boat.