Save up and get it all shipped at the same time - might be cheaper! E-mail a main dealer in the UK - they might be willing to organise it.
I would go for, Zetec S front and rear bumpers first, and ST spoiler. I think that would look really good.
Wheels, I like OZ Racing wheels - 16" max unless you are going to drop the suspension first
http://www.performancealloys.com/details...ssion=261719015