Here is an update for you...
We found a 5 lb tank that will work.
Mr. Bottrell sold his boat in 2000, and couldn't be of help.
We tested the 5 lb'er last night, everything is peachy, and the stove lit up, so we are now ready for our first over nighter away from the dock & under anchor.
We are heading out next week, weather permitting, on holidays to do
a night at 50 Point Marina, and then a night at anchor elsewhere...