Aren't there some websites where you input what you are looking for, which is then relayed to a network of 'scrappies'. Any that have then part then e-mail you with their price. I can't remember specifically which site(s) but might be worth a google.
i removed my driving lights yesterday to replace the bulbs and the units look very similar to the small oval ones you can buy from halfrauds...... theres ample mounting to the rear of them so i see no reason why a set @ £20 wouldnt do the trick....... all cars have the wiring kits installed so you dont have to even run the wires either.....