Exactly the case, there are a good number of condition rarities, but a meager few that are so rare that they are worth anything as an rc or thorough mismatch.
Although I never recommend buying refinished rifle, especially rc's, which are at best good shooters (obscenely overpriced "refinished shooters", entirely due to hype of a few opportunists on Gunboards and elsewhere...), the only maker-dates that are rare enough to consider a rc is:
S237/1936
BSW/1936 (this is worth picking up in any condition, most BSW are not rare enough to buy rc)
S27G
337/1939
S147k (maybe, low production anyway, most known are rc's)
S243G
swjXE (only SDP-bnz that is "rare" and only for its unusual code, 660/1939 are damn tough to find original, but not enough to go rc..)
While there are others that are condition rarities, or that are elusive, no others are rare enough to go "refinished", especially rc refinished (which is poorly refinished AND thorough mismatchers, - AND overpriced, they have it all against them, refinished, thoroughly mismatched and high prices, and propaganda about Stalingrad and Kursk, - and obscene KL connections, do not make up for the triple whammy...)