Nonstandard tom arm for a Ludwig 13" tom?

[mparsons]

Hey everyone,

I recently purchased a 10" and 13" tom set for making a DIY ekit. I've put mesh heads on there and so far everything is working great, except when I went to put them on the bass drum. I've got a Pearl Export kick with standard Pearl tom arms, and the 10" tom goes on just fine. The 13" tom has a larger than standard mount for the tom arm, so the Pearl arms aren't big enough to get clamped on.

It has a drum-key screw for adjustment. Does anyone know where I could get a mounting arm for this, or if I'm out of luck?

Thanks,