For a finishing product I'd go with something like Poorboy's Natty's Wax BLUE, or Meguiars #16. The Meguiars is harder to work with but both give a great clear, wet look finish. If you would rather a deep sheen as opposed to a very clear, wet finish, then think about something like P21S or Harly Wax.
You may want to put a paint cleanser / glaze underneath the wax to help clean the paint, and put some oils down to further enhance the shine of the paint before it's sealed in with the wax..... Something like Poorboy's Polish with Carnauba BLUE, Clearkote Vanilla Moose Wax or Clearkote Red Moose Glaze will work really well with any wax and give a fab final finish.

Whats the paintwork like generally? will it need some scratch removal or anything like that done as well before any of the above products are used?

PM me your budget, and I'll get you a price on the above, and any other products required with the PF discount

Cheers.
Alex.