Agree, if you really get into scenario/woodsball, you will find stuff to your liking, I see people using all kinds of speedball guns out on the field. As long as it shoots a .68 ball, its all good. Personally I would choose something the least flashy/reflective.
Gear - Get some BDU's from an army surplus or buy a vest. I like having the bottle off gun for crawling around. Need something to carry the balls around, but you already have a pack from speedball so thats not a big need.
Honestly, you are already good to go, I see guys out their in full speedball dress. I love to see them out in the woods - they make easy targets
but starting out, just tone it down with some camo and you are good to go.