I have two of the clips/plates you need as well as two of the threaded copper insert pieces.

I have a bunch of other extra Slingerland parts, in case you might need anything else. Just let me know!

Not sure of your location, but depending on shipping, tooling may be cheaper.

Thanks!

Finally got hold of one, from a seller in Poland, no less!

Yep, that's what you need. The tough part is getting it to work properly in the bass drum bracket. Take a look at the tom bracket and you'll see what needs to be done. I used a small metal file. My hands really hurt afterwards!

Mark