My .02 cents on tents.
First for four guys you need something a lot bigger than 140 sq ft, unless you are really trying to keep either weight or your footprint down. I have a 12x12, and yes I could squeeze 4, using at least on bunk, but it would leave no room for storage, no room for cooking inside in cold weather, and way too much snoring and condensation.
My friends have canvas and they are very nice, but I prefer the Alaknak tents from Cabelas. I don't like mice in my tent and without a sewn in floor you WILL have them. Also the weight is too much. Now, if I were primarily an archery hunter I might prefer one as the white cotton is much better when it comes to being in direct sun.
Nice thing about the Alaknak is the portability when its being traveled, plus the frame/pole system is included. I recommend you look at the 12x20 version. Add the vestibule and a stove, and you're done. Grab some carpet to layout on the floor. Use wood heat except first thing in AM to take chill off, which a propane heater is good for.