Re: Chain tensioner
You know these are available at the TSC, right. Just bolt it up to the original kit bracket. I am by no means saying to not experiment or come up with a better one. That could be a profitable venture. Just sayin' they are out there and commonly used already.
You are going to have a blast welding! Lots of doors open up when you can weld something at the house.
Caution! I give opinions as if they were worth something. Use at your own risk.