I am from the other side of the fence.......I DO drive my deuce as a daily driver........I am hopelessly lost without mine(it was down for a new motor).....and before I get flak for the motor.......it was on it's way out from day one so I knew it was going to need replaced, and that didn't stop me from putting over 30,000 miles on it before it got pulled.
I do not get how EVERYONE says it will run you in the poor house or leave you stuck every time you turn around. MY deuce has been the most dependable vehicle I have had in a long time, they are a very simple machine....yes out dated by many standard, however I believe the best things built are out dated, they come from a time when things were built with pride. Anyway enough with that rant. I run mine on almost anything I can get my hands on so it helps on the fuel cost (I hated going to the gas station for the last month I spent rebuilding a new motor). Over the last 2 and a half years I have owned my deuce, I have put over 30,000 miles on it and drove it all over the place, Wisconsin a few times, Kentucky, and into Ohio a bunch of times.....many times I was in the thing for 12-15 hours at a time, only stopping to get out the pick up something else and get back on the road.
As to the heat, I learned very fast to plug up the holes in the cab, an arctic shifter boot for the shifter and transfer case will change the temp inside considerably and it worth every penny spent. I could go on about other mods that will make it a better ride all in all, and I am with you......I have only had AC in a couple of my vehicles and I could care less one way or another about it.
Anyway, I could go on about it but I won't........you have a hard decision a head of you and if you are like me you will NOT regret getting a deuce.......they are a blast to drive.