Welcome to the Stovebolt Gil!
Alvin is right about where you can find fellow Stovebolter's. Check out the
International Zone forum and post in there to say hello to other folks from Europe. You may be surprised to find someone closer than you think, AND who will be able to probably help you with finding parts and resources for your truck.
The other spot Alvin mentioned where you may want to post is
The Stovebolt Fire Department forum. A very helpful place for folks sharing knowledge and information about "Fire Trucks"!
You may also want to check out the
Big Bolts forum as "Big Bolt" trucks were the base of what became your fire truck.
One last note.

Please post some pictures of your truck. The folks that make up this fine site (that includes you now too) love to see what you have.
Looking forward to seeing pictures of your truck and more conversations in the various forums.

Dan