Mario, are those the cans/holders going on the Horizon?
As far as extra cans of fuel I don't need them with the F250 (88 gal capacity aboard). The '93 Toyota at the beach is an open-bed and I have a floor mount for one can in the very back of the bed. In the Xterra I let Diana carry an extra can on her lap. Okay, just kidding. I just wanted to see if you were reading this.
I've been told that either Calmini or ARB make replacement tanks for the Xterra which approach 130 liters. I haven't researched it yet, but, if so, this is the way I'll go. I prefer larger mounted tanks over add-ons.
"I'm ahead of the game and can afford to take chances." --Theodore Roosevelt
'11 Mini Cooper Clubman, '04 Dodge Dakota 4X4