1970 Sov Water heater leaking - tank replacement?

[chasrahm]

Finally have water and hot water for my A/S.
It sure was nice to take a shower in the unit for the first time.
This unit is parked at my hunting camp.
But, I noticed it has a drip coming out underneath the water heater. I have verified that I cannot find a source other than the tank must be leaking. I cleaned and have the heater working great.
I know a new Atwood LP unit, 10 gallon runs minumum around $360. I've seen replacement 6 gallon tanks on Ebay. Atwood cannot verify that the replacement 10 gallon tank they have today will replace the unit in my 1970.
Anyone know?
Thanks,
Charles Rahm, Dallas, TX