Your build looks great! I'm in the middle of my 1966 C10 build as well and it's my first project. I saw your first post saying yours didn't come with a throttle or shift linkage. I am looking to get a universal throttle cable but I'm not sure what size to get. Seems the 36" & 48" cables are the most common. Would you by chance know what length to get?
https://www.ebay.com/itm/31376802963...MAAOSwSQpgEu1j
https://www.ebay.com/itm/31340036854...0AAOSwXvRgEwef