IMO you way under bid this one.

I rebuilt my 71 challenger completely. It needed no sheet metal, it was rust free. I kept detailed records and all reciepts. I have 40K into it with me doing 99.9% of the work myself. I busted my azz to get it done. I wouldn't do the labor for anything less than 20K.
I think your 20 under where you need to be, plus you have rust!!!