Welcome to the forum! Amazon has a pretty good selection of hoses and connectors which might work without modifying your grill IMO. We recently got 10' extension hoses with quick-connects and shutoffs for our Yamaha 1000 tri-fuel gen to hook up to the FC20's low pressure propane port.
Also see the links in Post #11 here for other BBQ and grill threads where you might find helpful info..
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