Don't laugh but a couple of months ago I had an accident that saw all the balls in a ballnut empty themselves all over the place!

Two things:

Is this even worth attempting a fix considering I've probably lost a ball bearing or two. (I might have them all but these things are so tiny I can't be sure)

If it is worth it then what the procedure for getting them back in? I can see a couple of plastic caps which presumably were used to fill the nut when manufactured but these push through rather than pop out so that rules out filling when the nut is on the screw. Only thing I can think of is drill a hole in the plastic caps and pop the balls back in then seal up with silicon or filler.

If all is lost can you suggest a decent (cheap) supplier of just a 1605 single ballnut? The ballscrew is virtually new so don't want to mess with that.