Ideas for mounting jerry cans aluminum cap

Hey guys could use some ideas here. I have a 2014 tacoma single cab 4x4 with a Swiss aluminum cap on it. While I would like to have a fiberglass cap for ease of mounting a roof rack that is not the case right now. Gonna be spending that money on a 2 inch lift and a warm winch right now. Anyways does anybody have some good ideas on how to mount jerry cans/rotopaxs to the outside of the truck? I'd at least like to carry 5 extra gallons with me since I traverse a lot of remote Nevada/Utah/Arizona by myself offroading. The inside of my cap I built a little camper in and there's no room for jerry cans plus I don't want the fumes in my cap since I sleep in it and keep all my gear in it.Any simple ways to mount a jerry to my truck? Thanks in advance! Btw someday a 4x innovations rear bumper and swing out carrier is on my list but as a starting off 20 year old being able to lift my truck and put a winch on it is huge! Attached are some photos for reference! Thanks again!