Hi
@RICHtea! Welcome to the Planet.
..and welcome to the world of rebuildables - its opens so many options, which can be blessing and a curse
To comment on a couple of questions you have asked:
- I am also a big fan of the Crown IV Tank and still use it today, when I don't fancy rebuilding an RTA. A RTA tank that i found gave me very similar vape to the Crown IV stock coills was/is the Pyro by VandyVape - at iteration v4 now, though I use the V3. This is actually hybrid of an RTA and RDA (called RDTA) - so has some of the benefits of the RDA (i.e. coil closer to mouthpiece, so arguablly better for flavour), but at the same time has a tank, so you don't have to drip
If found this easy to build on and wick and would consider quite a decent tank to start your rebuildable journey - but that said, the choice of RTAs is endless!
With regards to coils, I would suggest just buying premade ones to start - that way you can experiment with different types until one takes your fancy, then you could consider coiling your own - but too be honest, I personally can't be bothered, faffing around with wire and coiling rigs (though I already have the gear) - and they won't break the bank. 10x coils could be as cheap as £3-4 and each coil will last you many weeks
of course, you will need cotton wicks (lots to choose from, and everyone has their favourite - I would say try a few different ones until you come across one you prefer)
Whilst regulated mods will measure your coil resistance, I would strongly suggest that you invest in a coil resistance tester, so you can build and test your coil before putting on a mod
This leads me to Ohms Law, you really do need to read up on this side of things to make sure you are building safely
For example, if you build dual coil setup with two 0.4 Ohm coils - your final resistance would/should register 0.2 Ohms (essentially, adding identical coils in parrallel, means the final resistance will be half of the individual coil) - this catches out a lot people (and can be dangerous if your mod/battery cannot cope)
good luck on your journey and continue to ask questions
Asif