I agree, it's got a lot of flavour that reminds me of a flesh golem - stitched together, scar circling the head, "nearly dead" jerky movements. Plus, it specifically says they're not undead.
So, imagine a weak flesh golem with a gray ooze for a circulatory system.
The conversion may be a bit tricky, are there regular constructs or 'living constructs' with Con scores that can heal?
Anyway, we might as well get stuck in. What do the stats tell us?
3d10+20 [assuming it's not a "living construct"
Swordarm +X melee (1d6+Y/19-20) [as a shortsword
2 swordarms +X melee (1d6+Y/19-20)
Corrode weapon [those that damage it
], release ooze.
construct traits [already includes the immunity to mind-affecting effects described in the write up
What about ability scores? Intelligence 1 from the description.
May be worth remembering the ability scores of the critter inside:
Gray Ooze (Medium): Str 12, Dex 1, Con 21, Int 0, Wis 1, Cha 1
I guess we could also scale down a flesh golem:
Flesh Golem (Large): Str 21, Dex 9, Con 0, Int 0, Wis 11, Cha 1
Greymen: Str 13, Dex 11, Con 0 (or more if 'living construct'), Int 1, Wis 11, Cha 1
Don't think I like those scores, Str looks a bit low, Wis a bit high. Since they're described as uncoordinated I'm tempted to give them subpar Dex. How about averaging a flesh golem and a grey ooze, that gives:
Greymen: Str 16, Dex 5, Con 0, Int 1, Wis 6, Cha 1
I think that's better. Probably want to bump up the Dex and Wis a bit say Dex to the Flesh Golem's 9, Wisdom to 8?
Greymen: Str 16, Dex 9, Con 0, Int 1, Wis 8, Cha 1
That feels like it's in the right ballpark.
What do you lot think?