Luckily I found a used tank locally that was very fairly priced. I noticed that the passenger side strap had a much sharper turn vs drivers. And since the strap is shaped like the Nike swoosh, tightening the bolt side, it seems the strap tightens a lot tighter at the turn vs rest of strap. So I added 5 washers between the strap and chassis. My theory is that the shortened distance created via the washers will help take some of that tension off the strap where it turns.
https://imgur.com/gallery/43R6gGQ
I also took Fitted Life's recommendation and add this foam padding from his video
https://youtu.be/zAQGxsJIz80
https://imgur.com/gallery/4TElX2D
Since I got 50ft of the padding straps and when looking underneath the chassis where the tank butts up, there was a ton of rubbing scratches. I used the excess padding straps and add them too the tank. Sure it might look retarded but why not try it.
https://imgur.com/gallery/yQQS06P
I currently have GKtech's poly subframe bushings installed which pushes the subframe 10mm closer to the chassis. Everything clears with the "looser" tank installed. I'm going to fill the tank up 1/2 full, check if any movement in tank. If not, fill full and check again. If everything looks fine I'll check later after some mileage.