If I were an instructor, . . . traveling from state to state to train, . . . I'd send out an invitation to Wilson, Colt, SA, and anyone else who makes a full size railed gun, . . . telling them I needed an INERT frame and dust cover with their name and logo on it, . . . and tell them the purpose.
Add a scrap barrel and innards, . . . hot solder the whole thing so it doesn't move, . . . paint it dark blue, . . . you are in the chips.
Selling the manufacturer may take some salesmanship and you may have to mention their name 10 times in your presentation, . . . but I think it would be worth it myself.
May God bless,
If you can breathe, . . . thank God!
If you can read, . . . thank a teacher!
If you are reading this in English, . . . thank a Veteran!