I recently modded the coolant reservoir system in my '89 XJ, replacing the stock pressurized reservoir with a conventional one, also deleting the heater control valve along with a bunch of unnecessary hoses. I needed to hold the new reservoir in place, so I fabbed up this as my solution.

See the mod thread here:
https://www.cherokeeforum.com/f2/hose-kits-221251/

 

Overkill Bro! Bailing wire and bubble gum are more than enough. (JK)
Seriously that is nice! You should make up a batch and sell them.

 

Good job.