I own a "double wide, double decker" (so my friends call it.)
I would want to see a MFG. Rep..
These homes are built in a controlled enviroment and are meant to go together as a match.
If a representative from the company who built the home came out and saw what you have and what was done to correct it, they would know the true story and should stand behind you!
Was the company you bought it from the same as the home builder?
I would hold hold on to the money as long as you can.
If you bought a new car and the dealer smashed it up at the end of your driveway, whould you still buy the car?