the 47 yo fuel tank has rusted out for our Columbia 34mkII. are there any replacement tanks available? is there a reliable way of repairing this one? the tank is located under the starboard settee and although the top profile is a rectangle, the height is tapered like a wedge to fit the hull. the general dimensions are 24" fore to aft, 34-1/2" from port to starboard. not counting the 4 top mounted fittings the height is tapered from 12" on the port side to 9" (at 23-1/4" to strbd) , and 3-3/4" (at the strbd end) it may be possible to go an inch or two taller if needed. although I have appreciated having the 300 mile range that this 30 gallon tank has given me, I would consider a smaller alternative, ie a rectangular tank 24x24 and 10" tall would work for me as well. repairing this tank would be difficult as it is spot welded and soldered with an internal baffle. we are planning on heading south with her by November, so any links to a replacement are appreciated!