NoWorries said..
My local beach would be Pinnaroo or Brigton
I am about half way through lessons at the moment (Applecross)
your local beach is Pinnaroo!
you need to be riding upwind confidently before you attempt Brighton or you could very easily end up washed into the swimmers at Scarborough,
also you should try North Scarborough before you get to Brighton because if you mess up there's a fair way before you hit Trigg,
It's probably also worth noting that you can't kite Brighton while the life savers are there (which is this time of year)
And in regards to your gear,
buy it from a shop, safety is everything when you're learning.
probably an 8m, maybe a 9m. And a twin tip,
Hope you like the taste of salt water