The choice for braid is yours, I used to use it but since I do not run big dipsies any more I run #17 mono. Learning to read boards takes time, and only running one per side will be even more difficult since you won't be able to tell when one is running out of position. I don't run harnesses above about 1.8 mph, mostly in the 1.2 to 1.8 with an average in late summer of 1.5 mph. Inlines would be easier to use IMHO. There are some articles here that you can read thru that should help you. If you have more questions just ask.

http://www.dwfonline.org/articles.htm