Great build - we don't see enough full dh bikes on here, especially those from the latter part of the decade
Regarding the repro chain guides, was it for the upper or lower part? Any chance you have or could take a picture of the upper part look straight at it from the front (down the chain line)? I'd like to see how far it projects away from the seat tube, as it could suit one of my current builds.
Do you have contact details for the guy making them still?