After running some tests, I noticed, that the difference between the contrast levels of the WOWOW, and the LPP is problematic in some instances, causing artifacts. I therefore decided to try and use the WOWOW exposure levels to correct for this, thereby providing an estimate for the look of the original IP, rather than a 35mm print. Here are three example regrades, using this method.
35mm LPP:
WOWOW:
WOWOW regraded:
35mm LPP:
WOWOW:
WOWOW regraded:
35mm LPP:
WOWOW:
WOWOW regraded: