propane

I need to switch over from disposable propane bottles to a semi-permanently mounted 5# -8" diameter or a 10# -8.9" diameter tank. Any advice on mounts? Our situation calls for it to be bolted to the top rail of our dual swing-out bumper, next to the tire. So the bolts will have to go down...

I've seen some external propane tanks on a few rigs for cooking and water heating. Was hoping that anyone who has one might share a photo of their set up and what mount / holder they use. Also please provide feedback and insight for those of us thinking on getting one. Thanks!

I am looking for the size of the small propane tanks that I see people mounting on bumpers and trailers. Not the small green disposables and not the regular 20 Lb'ers. Also...Approximately how long do they last just being use for cooking?