Bontrager Race Freehub Conversion to 11s

[SpokeValley]

Oh, hive of wisdom:

A friend gave me a set of Bont race wheels with this 10s freehub. It's older, but there aren't any identifiers to be found. 130mm OLD.

The pawl body (if you call it that) is 24mm wide. The freehub is 40mm wide.

I tried a newer version hoping for a quick fix but the pawl body is too big. So, off on the internet hunt. I mostly hit dead ends because most specs aren't listed. Pix of the culprit and end cap attached.

Any suggestions? I'm hoping it isn't new hub time, but...

Many thanks, as always!