My 1st 67 GMC Truck

[67GMCDUDE]

While searching for a Pontiac powered 57-59 project, I ran across this 67 and purchased it. I'm new to the collecting aspect of these trucks/this forum and I'm wondering what you all think about this one. I would like to keep it as original as possible so let me know if what you see out of place.


No tag in the glove box but here's some details:

- CE1590DZC1xxxA
- 327 - no accessory bolts in heads (haven't checked casting date, numbers, or code but looks original)
- Dash tach
- Auto trans
- Power steering
- Power brakes
- Large back window
- This owner had the truck for the last 30 years

Questions
Is the seat original? - it was recovered but they thought it was an original
How to find original exterior paint color? - again they thought it was original but interior is a different color
Sun visor?
Did these come with wood and steel beds? This one was said to be wood planks and was replaced with double plywood.

Thank you!