Goodonya George - it's a fun game. I like the kick out holes where slings normally are - changes the way you play.

To test paints I've read;
- rub it with a rag damp with Turps - if the colour comes onto the rag its enamel
- rub it with a rag damp with acetone (nail polish remover) if it goes gooey it's a latex paint.
- not sure how to sort if it's acrylic?  maybe neither of the above?

As to matching the colour, a bloody dog once ate half a door jam of mine painted in enamel paint. I took a scrape of colour to a paint shop with a colour matching scanner and they matched it. I painted half the door jam and it blended really well - you couldn't pick it. Might work on a pin?