Obviously by your post, you've never "fully" restored a vehicle, sure no metal replacement in your definition, but they had to strip the car down to a shell, blast/strip/dip the major components of sheetmetal, prime, paint, along with any hammer or filler work, nevermind the finial stages of blocking coat after coat of primer to prepare for paint, nevermind the interior prep/assembly, driveline, exterior decals/trim, etc, etc, electrical, fuel/emission lines, brake lines, exhaust, etc, etc, etc, etc, etc, etc, etc, etc, etc, etc, etc, etc... the minutia of preparing, detailing all the componets for a full restoration are staggering, to the uninformed, it looks like a cake walk on a "clean" car, it isn't...trust me, 1000 hrs is the norm for a "good" restoration,....I can spend upwards of 500 hrs just priming, blocking, painting, color sanding, and buffing a paint job, nevermind the rest of the vehicles needs,....And by putting the "gun" to the builders/shop's head to finish the car based on your estimation of completion, it's guaranteed they will start cutting corners, then you'll get what you "payed for"...