Hope I'm doing this right. I have a friend's father in law that wants a lot of simple 3/4" plywood cabinets for the extra room above his garage. They are 24 x 24 x 60 with exposed plywood edges, no finish, no drawers and euro style hinges. They will have simple plywood shelves sitting on 2 x 3/4 supports. As you can see they are very simple. My materiel cost will be $65/ cab. The question is what is a fair labor price to build and install these? First job since I retired so any help would be greatly appreciated.