Ranchhopper,
Please reconsider the Rhino Liner for your tub. Although it sounds like you will be doing the proper prep, I have read nightmare stories about this. Namely, it will hide the possible development of rust, or it starts to peel off and is difficult to fix.
It was scary enough for me, that while I was looking for a Willys, and found it had been Rhino lined, I couldn't get away from it fast enough. It will hide a multitude of sins, thus you might scare off a potential buyer if and when you're ever ready to sell it.
Your inside surfaces look pretty good. Why hide them?
Just my humble opinion.
Tim