I agree with you fellas. Just because you haven't tried something before doesn't mean you can't do it, you'll never know till you try. Most approches are common sense, although i've met a few that didn't have that.
If I were interested in something, (plumbing, wiring, carpentry etc) I would seek out someone that had that trade. I would offer my help for free just to learn how to do It, watch listen and learn!
That's one thing that is nice about building your own stuff, you only have to please yourself! Dad always told me "God hates a coward" lol