Well hey I'm new I don't really know what I'm talking about.
You can recommend something better if you like, I'm all ears!
I have done extensive research but..so much that I'm kind of giving up. Sounds like you really need to build your own down to every last detail..every last little wire to make the best flavors come out. But if there is anything easy to put together or any better kits please tell me!
It's not always necessary to build you own kit. There are lots. OR you could consider getting a separate tank and mod.
Much depends on how you want to vape.
If you feel the mini Nautilus sounds suitable (why not? it IS good) then put it on an inexpensive 'mod' battery. There must be thousands of people using mini Nautilus on an Eleaf iStick or Innokin Coolfire or perhaps an independent battery mod like eVic mini VTC or Eleaf pico.
You'd have to do the math, but most people who buy kits like the Premium kit (which isn't premium at all, as I've already said) end up giving up on the battery and buying something with variable power.
Today, I've been using a Cubis tank on an iStick 40w. Sadly, it will be the last time (but I got well over 1 year whoo-hoo) as my iStick finally failed on the usb charging socket....

I like the eGo AIO but it can be too strong on the atomizer (0.6ohm) so some people have coils burn out prematurely.
The Innokin T22 is good if you like the tight mouth draw. It's also a lot weaker than eGo AIO.