very nice boat! I have two of these 93/94 thay are a very nice model.
I did try uploading photos of them to the site. Anyway fire monitors do some times come up on ebay for sale. if not try model dockyard or westbourne model ships web sites. Hope this helps from a new member Albert.

HI Boat looking good. From your previous post I see that the model was built in the 1950's. is it possible that an I.c. motor was originally used as they were common during that period? it is possible that the shaft and/or bearings will be well worn. Grease will help but not cure the problem and will add drag and increase motor current (amps), thus reducing your sailing time. I suggest you remove the prop shaft and see if it is worn where the bearings are. if so you may be able to obtain a new complete prop shaft of the same size. if the inner shaft is is a nice fit in the original just substitute the shaft. if the original bearings are no good replace with the new bearings from the replacement shaft. They can be teased out with a blunt knife and gently use of pliers. if you hace access to a lathe or a friend with one, you could just lap the shaft and make new bearings. Good luck dave