carrying additional fuel with a slide in camper

Hey, I am looking for suggestions on how to add additional fuel carrying capacity for my 99 Dodge (diesel dually) with a slide in truck camper (Lance 980). No trailer possible.
thanks,,,,

Google replacement fuel tanks, there are 2 or 3 manufacturers that make them, I have a 57 gal. replacement for my 2013 F350 37 gal fuel tank.

I had found Areo tank makes a 60 gal replacement at $1000+, I was looking for alternatives. I def don't want to have to snuggle up w a fuel jug when sleeping in camper.
thanks,,,

Kobelco wrote:I had found Areo tank makes a 60 gal replacement at $1000+, I was looking for alternatives. I def don't want to have to snuggle up w a fuel jug when sleeping in camper.  
thanks,,,

If under the vehicle is not safe enough just where do you plan on putting it?

I think the aftermarket makes holders for Jeery (sp) cans for the back of a jeep. I have seen p/u campers with this kind of holder
with gas can, 5 gal, bolted to the outside back of the camper. I would Not want to sleep with a gas can.

https://www.google.com/search?q=jerry+can&tbm=isch&source=iu&ictx=1&fir=ED5_Kr0Jrzp8JM%253A%252Cui50CVuHM5anNM%252C%252Fm%252F02d9gt&vet=1&usg=AI4_-kTRac2YDgs_-NCa6pabWO-IoDJ7fA&sa=X&ved=2ahUKEwjl-_GI8NrjAhXKKM0KHRf1ALYQ9QEwAHoECAcQAw#imgrc=ED5_Kr0Jrzp8JM:

or go with the bigger frame tank.

My 2 cents