Answers:
To figure out registration and other things, buy Screenprinting The Basics available here:
http://www.gigposters.com/classified...eid=5517&pre=1
1 Yes.
2 Yes.
3 Part one, find other artists you admire and look at their subject matter, think about how that would work in your own style. Create a "Morgue" or pictures, graphics, bits of type, that interest you for use in future ideas. Go outside and see what inspires you. Take a sketchbook with you.
3 Part two, low number editions are fine. Buy, bigger tubes than you think you will need (I recently learned this.)
3 Part three, you are lucky. Exploit that contact when and only when you have enough work to show.
4 Both, and experiment with other media and then scan it into Photoshop, too.
p.s. Fun, yes. Profit, probably not.