I finally got to my local hobby pusher today. on the counter were several very expensive R/C car engines, earch with a hole in the care from a broken rod! OUCH!
I found 4-40 allthread, 4-40 nuts & washers, a piece of brass for the "vent sheild", and some basswood to make the side rails.
BUT NO 4-40 SQUARE NUTS (But I have a good lead!
How many people need 4-40 square nuts? I'll send 'em to you but You gotta let me know!
I figure 14 per mortar.
Again, let me know! Soon!
Dave