If you don't want TC the SVD 2.0 might work for you. It's a tube mod with an Evolv DNA chip. Goes up to 20W. It comes with 2 interchangeable tops, 910 and Ego. They have it for $25 at EVCigarettes. Long and heavy, but it's built like a tank and people say they are reliable and last a long time.
I have one. Like it a lot. I mostly keep it at home though because of its size.