Imex riva classic speed boat

[Joe007]

Hey guys I have this riva speed boat that is 33 inches long... The props are plastic and are always breaking... It has a twelve and half inch solid steel shaft that is 4mm thick... the prop is about a 35mm three blade with a grub (set) screw to hold it on the shaft... Any one know where I can get a brass prop for it?
Joe

[Alexgar]

Can you add a pic I had a abc hobby boat with 4 mm shaft and it had a drive dog and ring that had set screws and you could buy a 3/16 prop and put a piece of 3/16 brass tubing as a spacer down to 4mm

[Joe007]

Here are two pictures of the shaft... The first one is the end of the driveshaft with the notch for the set screw...
Joe

[Joe007]

I was also thinking of buying a brass rod and threaded for a prop...
Joe...

[Alexgar]

Pic of the prop also please