Don't listen to anyone saying the stick you buy has anything to do with what position you play, you have to develop a preference, but for now I would just pick one that seems to fit you. Ask your friends to throw with their stick and develop a preference that way. for a shaft you should get a light one, but some people like the feel of a heavier shaft. again preference.
Pads: To me pads don't really matter either, just go to the store and buy the comfiest ones there, that are also the style you need.
as for styles of pads:
Shoulders: Everybody cuts the shoulders off of their shoulderpads so those dont really matter, theyre all essentially the same after that.
Elbows: attack - bigger arm guards, you will get hacked
middie - medium size arm pads, more mobility and lighter, and a middie has less risk of a longpole smashing their arm.
defense - medium or small, doesnt really matter, you probably wont need them that much.
Gloves: again whatever you feel most comfortable with. I suggest STX k18's, Nike Vapor Elite's, or Bring King 2 or 3's. but its still preference.
I know this probably doesn't help much, maybe it'll give you a little bit of guidance on the style of padding you should get, but the actually pads that you get don't really matter.
good luck