
You could also try Front Runner products to source a tank.
I decided not to go with a tank because I couldn't find anything that was made with baffles, and prices sucked. In the end i went with stackable water cans mounted in carriers. This solved my baffle issue and allowed the versatility to move the cans around my rig and trailer as needed to balance weight around.
Also the individual cans acted as anchor points for my rtt and awning lines when the ground was to rocky for stakes!