Quick update on this guitar....
All the aged parts I ordered from RS Guitarworks in the US came a week or so ago and they look great! I've fitted the tailpiece and pickup selector ring, plus removed the supplied ABR-1 bridge and tuners.
The existing tuner bushings were the wider sort as the previous owner had fitted Schallers in place of the original Klusons, so the aged RS ones were too small. Arse! I found a supplier of "conversion" bushings in nickel though and I've aged them a bit using vinegar fumes and salt water. That's taken the edge of the newness and they look like the rest of the hardware now. Nice one!
I don't have the appropriate tools to fit the ABR-1 posts, and the new bushings are a very tight fit, so rather than risk me screwing it up the guitar is going "as is" to my luthier this morning to have the remaining parts fitted and to get a full re-fret.
I should get it back in a couple of weeks all finished, so look out for a new thread then......