Traders on the forum to contact are envy valeting or i4detailing.
If you want to keep it nice then you'll need two buckets, a wash mitt or two and some good quality shampoo.
Then some mild polish / pre wax cleanser - Maybe Dodo Lime Prime and/or Lime Prime Lite
Then some wax. Maybe Dodo Light Fantastic or Supernatural.
Obviously if it needs it you'll need to give the paint a bit of clay to make sure the surface you'll polish is clean.
Top all that with some Envy detailing brushes - MUST HAVE! - for use on wheels, interior, badges etc....
A bunch of microfibre cloths and applicators.
Then you're all set. Many members are happy to help out with technique etc.