Go to somewhere like Index Marine or Aquafax, they both sell them, Not sure if they have a website but i guess they will have.
But im just Rigging a Ribcraft 5.85 as our Barrus Demo boat, i have ordered some from Ribcraft and they were very good quality and they dont even need screwing to the console, all you need is a hole!.
Dont know how much they were though!.