Nice start mate, looks much better with the alloys rather than hubcaps...and at £100 looks like ya got a bargain!
For paint, you'll need to find a local auto paint supplier, they will be able to mix it up from the code (527) and put it in a rattle can for you.
Careful tho, there are a few different shades depending on the brand of paint they'll give you, last time I got paint I took the swatches out to the car and went for the closest match from the 3 types.
What are your plans for it? C/Code bumpers have to be a priority, they make a massive difference to the look of the car once done.