Funny, i'm in a similar boat (with different questions though) - intending to get my first "mech mod" soon.
I don't know if actual mech users sneer at this, but i decided to go down the route of "mech mod with training wheels" - have a look at the EHPro Armor Prime mod. It's a single battery tube mod with safety features. It isn't really a mech mod, since it has those features (reverse battery protection, low resistance/short protection, low voltage cutoff - meaning you can't overdrain the battery), but it's still unregulated.
That's the route i'm taking, it'll teach me some basics in regards to safety, getting more exact in my coil building, all those things. With the added bonus of not instantly getting punished for a mistake.