Need old style "bubble gum machine" roof lights for police cars

I am just starting to work on the Promolite '59 Ford Custom 300 2 door sedan and I have a '59 Chevrolet 2 door sedan and both are going to built as era proper RCMP police cruisers. I need two of the old style roof lights with the rounded top on the lens as opposed to the newer flat topped ones. The lights that I need would apparently have common the '61 Plymouth wagon from JoHan or the very early '60's Chevy pickup and the '67 Chevrolet pickup annuals that could be built as a roadside service truck. It looks from what i can see in the photos, like at least one AMT American LaFrance fire truck had the same lights. The style of lights that I need are as seen on the roof of this car - http://www.flickr.com/photos/jag9889/5833905900/ It's too bad that someone doesn't reproduce these lights as I am sure that there are other people out there looking for them to build replicas of old emergency vehicles. I am willing to buy the lights as long as they have the chrome base with them or if I have something that you need, I'll happily trade. Thanks in advance.

Source: http://cs.scaleautomag.com/SCACS/forums/thread/1023689.aspx

Mika Häkkinen Bruce Halford Jim Hall Duncan Hamilton Lewis Hamilton