Gratz on your find...hope it all turns out well. I actually have a Byron P-51 also. It is not the full wing model and has the plug in wings. I believe I got this model around 1996 and its just been waiting for me to build it. I've done parts of it over the years but alway get side tracked. Mine has the Mustang engine with the muffler canister that is used as the mount also. Seeing you starting on one makes me want to get mine out and start working again. I should have everything I need (retracts, motor, air system, etc), and I think I've been very careful over the years to not lose any parts during my many home moves.

Good luck with your project!