New to the site! 73' Scamp @ClassicsDaily

Hey everybody! I'm new to this site. I was referred by one of my followers on my Instagram page @ClassicsDaily when I purchased a 73' Scamp! I love the site from what I see & just wanted to introduce myself. Check my Instagram page out for a bunch of cool classics! @ClassicsDaily

I bought the Scamp with a 225 slant-6 with a 4-barrel, nice intake, head, & headers, but the plan is to put the 340 my dad recently took out of his 72' Satellite into it with a 727 with a small stall converter. It should be awesome. I'm also going to have to switch rear ends & hopefully find a 8 3/4 rear end & disc brakes for the front from a Duster or something. If I do that I think the bolt pattern should be 5x4.5 but does anyone know the offsets & back spacing I can work with?
I'm located in North Texas to! Hi to all of the Texas members!