Many years ago when I was converting my vinyl I used to use the Audacity Repair tool to fix up each scratch individually. And like you, Doug, I spent a whole weekend on a favourite LP of my wife’s (that Warner Bros were sitting on the copyright and refusing to release a CD).
Then just after that Koz gave me a steer to Brian Davies’ excellent Click Repair app. I ran it first on my “repaired” copy of the album and it found and fixed a lot more small clicks. So then I ran it on the original WAV recording and it took about 5 minutes to produce a truly excellent result. So for the small amount of cash I spent on buying the app from Brian I saved many many hours of tedious work.
Sadly ClickRepair is no longer available, Brian Davies is either very ill or no longer with us, but there is a thread on the use of ClickRepair here on the Forum:
Peter.
Postscript: and then five years later Warner Brothers relented and released the CD : Pronto Monto by Kate @ Anna McGarrigle 