[sdiy] Replacement Pots, Bushings, etc for SCI Pro-1s?

[Julian]

Hello,

I have, well, some of a pro-one that im gradually peicing back together.

I need to replace all but two of the pots (the originals are gone, not just 
dammaged)

Wine country has them, but theres no way im paying $250 for the set.

Does anyone know of an equivalent?

Thanks, Julian


ps. whilst im at it, im also after a source for keyboard bushings for the 
pro-1?

pps. ahh, and one last thing - the regualtors in the pro-1 are 78/78 'M' I 
understand the 'M' is a lower current version (?) Can they be interchanged 
with the non 'M' versions without issue?  (only 3 out of the 4 pro-1 
regulators are this 'M' type - im wondering why the 'M' type was used at 
all?)