Hi Roux!
Welcome to ECF. I would say that your selection of the MVP 2 is likely spot on. It is very highly liked in these forums for the price point and features. The other consideration I would suggest would be the Innokin iTaste VV v3. It is an exceptional device, and can be found around the $30 price point. It is probably about as thick as an eGo, but it is square instead of round. It has most of the features of the MVP 2, and is a little more "pocket friendly". The biggest disadvantage is that it is only an 800 mAh battery, but it does have pass thru, so you can vape while it charges.
As for tanks, I really like the Protank 2, which uses the same coil as the EVOD, but has a pyrex tank that is suitable for stronger "tank cracking" juices. I have not tried the Protank 2 Mini or the Protank 3, but would expect them to perform just as well as the Protank 2. If you want to try a top coil design, I have read lots of good stuff about the Innokin iClear 16/30S, although have not tried them myself.
As always ... YMMV!
HTH