I love the Siren V2 (I have both versions). I will say the 22 mm
tank seems to retain heat more (alternately, it could just be my favorite vape, so I fill it up more) and I tend to rewick it sooner, but I LOVE that
tank. It's extremely easy to set up and wick, and I would suggest rayon as a wicking material, it withstands heat better and is generally more forgiving, I don't get leaks anymore in any of my RTAs. It's a great MTL starter
tank, IMO and won't break the bank, either.
Your supplies can be as "little" as coils and cotton (or rayon) you can find screwdriver to wind coils and steam-engine.org will do the rest as far as calculating wraps to your desired resistance. I usually wrap my own coils but also use storebought if I'm having a bad day. Either way, you will want to "check" your resistance after you have installed your coil on your deck, but you can do it using your mod to check the ohms and see if you have arrived in the correct neighborhood as far as resistance.
I was happy to get a coilmaster kit, which does include an ohm's reader. I use most of the tools in there, and although the ohm's reader is likely not MORE accurate, as far as reading ohms, I really like it as a stable base for building (keep in mind I have a fine motor tremor, though) but I do like the ohm's reader to do everything on (including wicking and filling my tank, and checking for leaks, as well as a "test fire" to see all is well, before I transfer it to my (far more expensive) mods. For those reasons, I find a coilmaster kit helpful, but it's certainly not
necessary although I do find that I use most of the tools in there (btw, the wire snippers are great for snipping
wick as well, it's usually a nice clean cut and easier than scissors, IMO), and I don't regret my purchase. But if you are feeling unsure, you can certainly get started with much less expense.
Other nice MTL RTAs: The ares, the berserker (very tight draw though, and probably harder to build on at first). I like the Ares a lot for flavor, too, but my absolute favorite tank is the Siren V2. I'm not the hugest fan of Kayfuns but if they interest you, I might suggest getting a clone first, as the Kayfun originals are very expensive, quite well beloved, but not for everybody, etc.
I agree that a dripper is going to leak less and is easier to wick, but I also think that dripping is a pain and I hate wide bore drip tips, so.... Can't offer much advice there.
Anna