So i'm seriously looking into getting the 35 hot rod truck but I want to do my research first, looking at the options list when you first select what you are going to build and what I need to supply, I fully understand that it is up to me to figure out what engine, transmission, and rear end I want to use, but when it comes to a rear end what is the wheel base size so I can find the correct diff that will fit, also I know the grill comes with the kit what about the radiator would it be a custom rad or could you find an off the shelf rad that will fit and look like it was supposed to be there.