Thanks for posting that reply. This made me check out their sidekick. This may be a decent solution for my purposes. I’m pretty confident that at just about 10 mpg towing (some 1600 miles of it so far with a good mix of highway, backroads, hills, flats) I’ve comfortably got 275-300 miles of range on a full tank and we really try to limit towing to 225-250 miles at a time. Most of the time I should be fine. But planning for Murphy’s law - it would be good to have some spare capacity on board. I don’t think carrying a 5 gallon jug is a desirable option but this spare tank might be a good solution.
An aux tank won’t work for my bed and their spare tire tank is only for diesels at about 5X the cost.
I’m going to call them for specific measurements - I’ve got a Cargo-glide bed slide (thus no aux tank) and would need to know if I can install this tank without it affecting the bed slide. If so - at sub $400 (including the rechargeable electric transfer pump/hose) that might be a good value for some range safety/peace of mind….