If you can't find it locally, you could get one from from where I got mine. It's from a seller on eBay called seriousfun4u. They sell lots of die-cast vehicles in various scales, most notably O scale, which is commonly used with 28mm scale wargaming. The price is reasonably inexpensive and shipping quite decent. They are a top-rated seller plus with 100% feedback and I highly recommend them.
They also carry lots other vehicles and O scale Plasticville kits.