MotoMaster parts?

[R7]

Anyone have a line on MotoMaster replacement parts?
I lost the cap to my master at VIR and have had no luck tracking one down. There isn't a replacement part number for a cap so my local dealer can't do much...and the place I bought the parts from gave me the contact info for MM and basically said good luck. I haven't been able to get in contact with MM yet.
So without this cap, I may as well just toss a $300 master in the trash and buy another one. Any help would be appreciated.
It's a 12mm MotoMaster master cylinder for a 2008 YZ 450

This is what the cap used to look like..



And this is the jerry rig that let me ride the rest of the day..

[Tricky Mike]

There's not a hose connecting the res to the master? Can't tell from the pic and I'm guessing not... so you can't just replace the whole res? If a gatorade cap worked in a pinch maybe another manufacturer's cap would work? You could try calling Motostrano. Those guys have always been really helpful whenever I've called...

[R7]

My dealer suggested bringing the res in and trying other brand caps on it, then order a billet cap or something to fit. I tried that with one off another Yamaha but it's an odd size.
The res is bolted directly to the master on this one.
I didn't even think to try MotoStrano

[lopycam]

http://www.motostrano.com/mobrmare.html

[R7]

Note to self, check Motostrano in the future. Thanks Nate

http://www.motostrano.com/mobrmare.html

[lopycam]

Does this mean I can try the new toy?

[R7]

Does this mean I can try the new toy?

Sure, but don't you have a YZ as well?