Premade are decent for first starting out but here's what I recommend
- Get familiar with www.steam-engine.org
- Buy a basic build kit from either UD or Coilmaster
- Watch some YouTubes on how to build and wick, there's a ton of them out there
- Ask questions here that you may have after watching and trying your hand at it. Just remember to have pictures and details when asking questions
That should get you started, it's not hard and actually it's pretty damn easy for you just need a bit of practice. Thing about building your own it gives you much, much more freedom to tailor your builds to your own devices and tastes.
Additionally don't skimp on quality wire, the Chinese crapwire is shit most all the time. The best quality wire I've found is Kidney Puncher and a small 30ft spool goes for well under $5. Perspective check, 30ft of wire will give you more than enough for well over a year. Here are the wire that I recommend that are real Sandvik (best you can get).
- Kidney Puncher
- Atomizer Wick
- Temco