hello from Atlantic Canada

Welcome to FABO, Xsapper041, you're going to have fun here.
Sounds like you've done a lot of thinking about your Mopar project and I like your decisions. Too many put too much money in the initial purchase and then never finish the project due to lack of funds. I'm partial to the '69 Darts as I'm currently in 'build mode' on one now. I had a '69 340 Swinger that I bought used back in very late 1969 but it's gone now due to some stupid decisions years ago.
Good luck with your search and keep us updated on whatever project you decide on.