Prices vary a great deal depending on your location. Here at our shop, we charge $434.88 for a short bed, under the bed rail, full size pick-up.

I've never had the chance to lower the price for the customer doing prep work themselves*. Even if a customer did the prep work on their own, I would still have my techs do a full prep job on the truck, just to make sure that the job was done correctly and we can warranty the work. If a customer did a shoddy job on the prep, they might hold us liable to fix the liner when it fails. *this is for a standard application. We just had a truck in our shop that had a basket case of a bed that I had to charge an extra couple hours of labor for the clean out; the customer could have saved themselves the extra charge had they chosen to clean out the bed themselves.

The entire job can be done in about 2 hours if the tech hustles. I prefer to tell my customers 4-5 hours just to be safe (a lot of things can go wrong and slow the job down). Keep in mind that although the liner is dry enough to walk on in just about 15 seconds, plan on not using the bed for heavy use for 24 hours after the spray.