That is not too shabby! A bit of carving to remove the extra bits behind the hammer and trigger, and a good coat of paint and you're in business! Is it a .45 calibre model, or .38? Can't quite tell.
At the http://movieguns.com/ site they have:
#625 Disney Indiana Jones Stunt Show Rifle
#221 Webley Revolver w/5" Barrel
#55 S&W Model 10 .38 Special Revolver w/4" Barrel