Read up on detailing world about it first
A daz 6 polisher comes in at £90 and enough pads and cutting fluids should set you back £50-£70 aprox
Better then paying someone £250+ and very rewarding too
But it is a very slow job at least 1 hour per panel maybe more
When you see what people achieve on detailing world you will get hooked on it
Make sure wash and clay and de tar first though and don't try to do it over a weekend best spread it out over a weeks holiday or throw a sickie !