just so you all know,halfords paint isnt top quailty stuff,you can get better quailty paint put into a spray can at a small paint supplys,,,,they mix it up from a quailty paint system and seal it in a can for the same price as halfords
iam not nocking halfords too much as ive used plenty from them on a sunday when other places are closed but as an example i have a small shop called 'humberside paints' round the corner and they supply tinned paint or spray paint,guns,compressors etc at the same prices if not cheaper if buying in bulk,,,,all you need to do is blag trade prices from these business's
all iam trying to say is,,,if your going to spend nearly a £100 on primers,paint and prep materials,,,,halfords isnt the place,,there for quick repairs
and then you might aswel buy a cheap compressor/gun kit and a pot of paint for less than £150 and then you can start buying air tools,,die grinders,tyre inflators etc for the future