Yes there is a matching front Pace hub. Here's a picture I just stole from the Internet. There is a later carbon bodied Pace front hub, RC50 I think it's called, but in my opinion thats is to new to match the rear you have.
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The fronts come up quite often. Sold one last year for £30, wouldn't pay more than £50 for one personally, then that would be pushing it. The rears go for a bit more as a lot rarer.
You could stick a wanted ad up, sure someone has one laying around.