chevrolet c-10 short-box project

1977 C-10 custom deluxe w/ac and automatic, 305 v-8 engine, yes they made a 305 in 77, project, rough body rusty, the floor pans are rusty as well, good solid frame, has not been robbed of parts except grill, mostly all there, parts for these trucks are vast, but finding a short box is getting hard to find, the mileage is a guess the gauge plastic was too cloudy to see, I guessed on mileage.thanks for looking buy it now or make offer thank you for looking. clean title in hand....