Welcome aboard. I don't have any help on your questions, but I just bought a 69 swb a few months ago. It's the first of this body style for me. Try using the search bar at the top of the page. It's been real helpful for me. I usually just put in 1 or 2 words and search the 67-72 boards.
If you can post some pics of your truck. Everybody loves pics.
Here is a link to some blue trucks
http://67-72chevytrucks.com/vboard/s...d.php?t=439953