The ’72 C10 might be the most desirable platform to use for street trucks. They tend to be really pricey when they’re in good shape, especially the short bed, fleetside versions.
The above video, from Youtube user HotRodDirtys, is of a ’72 C10 for sale on ebay. Link here. Bagged, wheels, nice paint. Guessing by the amount of videos of different trucks, HotRodDirtys probably sells different vehicles for clients on ebay.