Looks a nice idea, but I personally will not call it Cherokee... It is a Jeep Pick up J-10 or a Honcho kit with hard top. Front grille is wrong for a '77, (the '77 Cherokee has round headlight and different grille design). Cherokees has a shorter wheelbase than the J-10 you used. The '77 Cherokee never had a wood side trim it, you got confused by a Wagoneer...
You should add a bench seat in the back, SJ Cherokee have seats in the back, J-10 Trucks not...