Ask the manufacturer mate.
The maestro Junior Martin wot has the crab/crawfish logo. (depending on how far you stretch the bellows - in your case its more like a centipede)
The boss Marc Savoy & his Acadian brand. (you should have had a word with his daughter at Broadstairs)
Both guys are happy to bore your socks off talking about proper accordions (i.e. the cajun variety)
But knowing the hard life you put your machines through,
I would suggest wrought iron reeds and a bellows fashioned from elephant hide :-)

Those slant eyed heathens make a similar model called an Alliette, I believe, which make a very sweet sound as they crackle on a real log fire :-) (-:

P.S. How sweet did ya find the sound of my much loved Larry miller Bon Ton? Chris prefers its sound to his own Martin.