I have a rear tine tiller with 5 hp Briggs in excellent condition other than rusted out fuel tank and corroded carburetor. I can find carbs and kits but no fuel tank. Liner is out of the question, paper thin with holes,including sump. Model 135202 type 0145-01 code 93012707 Tank pn694315. I furnished #s because someone usually asks hoping they can suggest a source of parts plus I can buy a 6 hp Predator or Ironton for $129 and wonder what the odds are they would fit. Is it simple as matching shaft and mounting holes? It's quite a trip to take the engine in for side-b-side comparison so I'd rather have it delivered. Thank you for your thoughts.