If you go with the large propane tank, let me suggest that you stick with Coleman for a distribution tree and hoses. I had two fires near my teardrop. Fortunately I was cooking on a table, not the tear. Both were caused by a bad non-Coleman hose. After I replaced it I had no problems at all.
The fires were contained in the stove the first time and the gas BBQ the next time but both were while using the same bad hose. The first time I thought it was due to a poor connection I made, I found the right answer with the second fire.
The funny part, there are always funny parts, is fire #1 melted a hole in my canopy side curtain. I was at a dog show in a remote area with no facilities. I had set up my PETT porta for emergency use. Later in the evening I needed to use it and ended up sitting there and stacking everything I could to block the accidental viewing hole.
I need not have bothered. Some of my senior female friends were chatting and one complained that her condo layout was bad. People standing on an adjacent hill could look into her shower. Her good friend said "Don't worry Dear, they will only look once."
Any one looking in my accidental window very long either.
Be careful with your matches.