Have you taken any lessons yet? I'd invest in lessons and more riding before worrying about a board. Remember it's 90% rider 10% board!
says the dude who rides an ironing board.
OP, if money isn't an issue, demo if you can. Seriously, no one can tell you what you will like but you.
Also, when I upgraded to a nice board from my crappy beginner board I was a LOT more confident on steeper terrain. Part of it was getting a board with magnetraction, It helped a LOT. A lot more then I thought it would...while new and better gear might not make you a better rider it would give you more confidence and that will help you get better. Esp since you said you're on the ice coast...
if you can get quality instruction, sure that's good too, but if you have the money why not have nice gear?
if a cat fucked a shark, the babies would be called women. snowklinger