30 large for a long box 2wd GMC..... I imagine it's a really nice truck that your dad spent a pile on to build..... But that is going to be one heck of a tough sale. I am not saying your truck is not necessarily worth the money but I am just warning you will have one heck of a time getting it. Good luck though.
Ask Deano670 as he had a long box 2wd GMC with a pile of money in it..