Welcome to the site. As far as being able to post there must have been some sort of glitch because you do not have to be a subscriber to post. You do have to be a subscriber to post For Sales, WTB, and WIW. But being a subscriber helps keeps the board rolling, so thank you for that!
You should start a build thread here so everyone will check it out ...
https://67-72chevytrucks.com/vboard/...play.php?f=115