I like that and the badge you've put on it 
Cheers Bud.  

Nice job MC71  Was the plastic easy to paint?  What paint did you use
   Was the plastic easy to paint?  What paint did you use
 Last Q  is the coolant lid off ebay and is it a good fit?
Filled the gap with several layers of Isopon flexible bumper filler, a lot of sanding then 2 coats of plastic primer, more sanding between the coats, then 2 coats of Matt Black and/or Gloss Black with more sanding in between. Put it all back together, et viola!
The Coolant Cap is a Porsche 911 cap and its a PERFECT fit. It can be bought all over the place for around £25-£30, got mine from awesomegti.com. If you want it to face in the right direction (like mine) it will need modding, bit of a PITA but looks better than facing the wrong way IMO.
Porsche 911 Coolant Cap....
~~ Clicky here ~~