So when we got our new to us 2005 Fleetwood Victory we knew it originally came with an external gas grill. The seller was not the original owner and didn't have it but they did give us another small camp grill we could use small propane cans with (its pretty bogus grill, btw). So I know I have an external connection by the door for LP gas. I know the gas works as we've used it for propane heat. I gather, from reading the parts book and user manual that this is a low pressure system and I should be able to hook up anything that needs propane to it. I have a coleman camp stove, a camp chef stove/oven, a blackstone 17" and that crap little weber grill. I'd love to be able to use them without lugging a 6 pack of propane cans. What do I need to purchase to do that? Will this work? https://colemanpopupparts.com/collections/lp-system-related-parts/products/exterior-grill-hose-kit How do I test it to make sure its working and safe?