rsi

Hi all carvers, I ride soft boot and now I am really into hard boot carving board, I think I am ready to switch. First of all I am an experienced snow border, I think I can carve really well on soft boot (yes I mean carving with pencil thin S lines), I can carve on all green and most blue runs, I can do cross over and cross under turns, in some steep run I think I am starting to do cross thru turns. I am roughy 168CM/60kg and I am currently riding a 158cm camber burton board, I know the board I ride is longer than the recommended length for my height, but I don't do park or jump, all I wanted is to carve, and I am quite happy with the board. :p Now I am ready to switch, can anyone help me with these questions? 1, What board should I choose as a beginner? And length? (I am into carving, not racing). 2, What is a good boot for beginner? 3, As a beginner, is it good to get the plate system? Or better to add it on later? Thanks a lot.