Galyna -
Long-term stays in a TM have been discussed a couple times. Since I have't done it, I will simply refer you to a couple of the threads.
http://www.trailmanorowners.com/foru...read.php?t=289
http://www.trailmanorowners.com/foru...read.php?t=196
My immediate concern is that you are expecting to tow it with a Jeep. What model Jeep? And how is it equipped (engine, rear end ratio, does it have a factory tow package, etc)? It appears that only the Grand Cherokee with one of the V-8 engines will be adequate - and even that will be pretty iffy.
The 3326 is the heaviest TM with a 3500 pound dry weight. If you add some factory options, and then load it with all the "stuff" you need for an extended stay - well, my guess is that when you are ready for the road, you will have at least 5000 pounds of trailer behind your Jeep. I'm not a tow vehicle expert, but that is a lot unless you stay on the perfectly flat terrain of the midwest. My guess is that towing in any mountains will not be fun. On the other hand, if you simply want to get there and set up and stay, and you don't mind spending some time in the "getting there" part, you will probably be OK.
By the way, as you already know, TMs are considered lightweight trailers. A standard travel trailer of this size would run about 8000 pounds.
Bill