May I suggest that the correct solution to adopt is best answered by asking yourself which would cause you most angst - maiming or killing yourself and any other people aboard? or destroying the boat and it being uninsured?
If the former, best either spend whatever it takes to create a compliant gas system [likely to be difficult & costly - see below], or switch to an alcohol cooker [Origo] which is not cheap, but is likely to be a much cheaper and simpler option.
If the latter, it's just a straightforward monetary gambling decision....[:D]
http://www.parkerseal.or...bbs/forum.asp?FORUM_ID=5 Gas Bottle thread 31/0/2013]
NB re Origo cookers, just search for 'origo' and 'alcohol' in 'All Forums' - there's plenty of advice.
Geoff Sheddick
Parker 27/146 "Stroller'
Geoff Sheddick
Parker 27/146 "Stroller'