Chassis Help

[CMFT]

Hey guy's, my father in law bought this frame a few months back as a substitute for his C10, but decided to stick to his stock frame. He was told it was a '62 or '64 C10 frame, but doesn't remember exactly which. I've been pondering the idea of building a C10 and wanted to get some thoughts and opinions on this setup. Ultimately, I want to bag it, but will likely start with a static drop until the funds can be raised to complete that section of the build. A buddy had his 66 C10 up at the shop the day I took these pic's and I could see the difference in the front body mounts.

Pic's aren't great, but here's what I have. If you need more detail, I can go back over there and focus in on areas.