Pot values on the EHX nano Bad Stone reissue?

[borax]

Hey everyone, first time poster here, hoping this is a good place to make this post.

I'm really interested in learning more about building/modding my pedals, and have built a few BYOC clones so far.  To practice, I really want to try modding the Bad Stone reissue from 2014 to accept an expression control for the manual mode.  I see in http://topopiccione.atspace.com/pjimages/EHBadStone.sch.gif the "manual" potentiometer resistance is 100k, but I'm not sure about the value on the reissue and I haven't been able to find that information online.  I know that I will need to match this value in the expression pedal, so I'm wondering if anyone knows what it is, or how to find it.

Can anyone lend a hand?