Yamaha DTXpress/DTXplorer/DTXtreme

...are various pads and hardware when it comes to Yamaha, Roland and 
Hart Dynamics?

The reason I'm asking is that I have a DTXpress III and I'm really very 
happy with it, but I want to add another cymbal (or two) and can't seem 
to find the cymbal mounting arm and bracket anywhere.

I called one place and they have the cymbal pad, but say they "may" 
have the mounting hardware in September.

Obviously that doesn't help me now.

Thanks for your help