I would recoment
THIS ONE but if you are interested I bought one of
THESE but have retired it after buying my first sugestion.
Your first one looks like a posablility but looks like it may have the same problem as my
SAWVIVOR in that it uses a non standard lenth of blade.
After trying them all I use the Duluth saw for canoe trips and the Sawvivor for lighter weight trips or a small folding saw for the real light weight trips.
EDIT. Just remembered that you are only a few miles from me, so if you want to see or try any of these then let me know.