MANY years ago, I built my first sno plow out of a HUGE hot water tank... Same idea, cut out what you need and make a mount. Over the years, I've seen many of them...
Around here, several folks are taking old 300 and 500 gallon propane tanks, cutting the end off both and sliding the 300 into the 500, then welding a plate "flush" on the cut ends and putting a door into the plate.
They are making wood stoves out of the 300, with the 500 being the water jacket, around it.
A "poor mans" outdoor wood stove...
SR