There are a couple of issues with Showdown points values which are why I haven't included them yet, despite wishing to.
1] A number of the creatures include non standard combat abilities. As examples the Hydra of Lerna's Radiation Field or the Weeping Angel's Perceptual Locking are not trivial fits for the points system. And I'd need to come up with appropriate values and/or substitutes.
Which leads to
The Points system is more a crude guideline that's a reasonable
approximations so long as the figures are kept near comparable values
rather than anything rigorous. Especially compared with the Legions of
Steel Points System or the Silhouette VCS.
and 3] The Excel spreadsheet isn't terribly user friendly.
are potentially soluble but my experience with Showdown is the points
values are more a guideline after you've made sure that the forces
available to each side are not incompatible. A number of the
Big Monsters would probably need to be trimmed down to keep the numbers
It's been on the list of things I've been wishing to do since the beginning. But the amount of work to prepare the simplified statblocks and process them is sufficient that I'm considering this a relatively low priority at the moment and letting it simmer.