Retail source for connectors for propane mod?

Well, I wound up finding the connectors at Ace Hardware, and the quick connectors and extension cable at Camping World - and it works like a champ! I used yellow gas tape on the threads and silicone sealing tape just to ensure no leaks out of an abundance of caution.

Here's the result:




I also made a complimentary connector to allow me to use bottles or the high pressure tee on the house bottles: