I'm looking to buy a new propane tank (or two) and I'm wondering how big I can go and still have it fit (without modification) in the propane locker on my 373. The boat is hours away, so I'd rather not make that drive to measure, and I Defender has a decent sale this weekend. I think what I have now is +/- 10 lbs, but I'm wondering if there's enough play to fit a 17lb Viking tank in there. Any 373 owners out there with propane tanks bigger than my 10lb aluminum tank? I won't do steel, but would be open to either aluminum or composite. Thanks.