Euraka is inexpensive, from Campmor, heavy for the size it is. Copper Spur interior space is impressive, freestanding. Hubba Hubba pretty much the same. Seed house not free standing, less interior, front entrance. Check out Zpacks duplex. VERY light, can be bought free standing, very expensive. Most sturdy tent might be the Hiliberg. Also very expensive. Look at Tarp tent, and Light heart, both very well respected by the hikers. Tarp tent Notch,or Mo trail would be good. Definately check out Rei, Their 1/4 dome is less expensive and a bit heavier. $20 membership will get you a 20% off coupon. They carry a lot of stuff. Rei credit card gets another 5%.
You probably want a 2 person tent, particularly since you say you'll be out there for a while. Tyvek for a ground sheet. Wash it 1st to get the stiffness out. Zpacks sells it by the foot.
Personally I have a Copper spur 2. Love it. If I were rich I'ld have a Zpacks.