If you can wait on this, I'd recommend seeking advice/instruction from the folks at the
spring detailing event mentioned by Rey .
You'd be amazed what can be done with the right products/equipment/experience. If past history is a guide, there should be plenty of all 3 at the event. Klasse is great, but surface prep beforehand is very important.
If the techniques there don't do it for you then you can always still go for the spray job...