650c disc brake fork

[Cheesewheel]

I'm looking at changing to disc brakes on the front of my recumbent. 650c seems to be a bit elusive, and even though there are a few 650c disc wheelsets turning up in my web searches there doesn't appear to be much in the fork department. Just wondering if any members who may be more savvy with road specced 650c could help point me in the right online or local direction.

The bike is an older bachetta corsa ss, probably the first in their line that started using carbon forks.

[eeksll]

if you can't find one. Since its a disc brake fork, could you not use a fork for a 26 inch wheel (or even a disc fork for a 700 c wheel).

I put a 700c wheel in a surly 1x1 fork which markets itself as a 26inch fork.