I would go for 1 litre of 1K plastic primer.
1 Litre of filler primer
1 Litre of 2k Top Coat in your chosen colour.
On top of this you would need 2k thinners and activator.
A small spray can of matt black ( this is only for a guide coat )
and some wet and dry paper ( 400-600 grit )
Masking tape and old newspaper.
If you have been wounds in your bodyshell, just flat them off with a razor blade, taking off the large ridges and dab a little bit of stopper on them ( after you have done the primer ) to flat them off.
Its easy enough to do, just sounds hard, but as you are only in Oxford you could always bring your c5 down here and do it and then I can help you if needed, either that or you can use my compressor and give it a go, I am sure its easier than you think it will be mate.
Mark