You can go lower to 1ohm. I have a lemo and found my sweet spot at 1.2ohm using 26g kanthal with 8 wraps and 2mm. If you want an rta the lemo 2 is a good one. Just a learning curve wrapping and wicking the coil just right. My first tank of juice did not go well because I did not use enough cotton. It leaked and I had a lot of dry hits. I watched a few videos and tried again and it has been great ever since. Great flavor but not huge clouds. I cannot get big clouds without using higher watts. With an rda I have to go to at least 20 watts to get big clouds. I am more about the flavor though.
You have so many options it is ridiculous. I think you have figured that out already! Keep us posted.
I just decided to order the kanger protank 3 it seems like a good tank hopefully it will be better than the i30