Ahhh wtf I posted but my internet fuxored and didn't actually make the post happen. I do again.

Oh turns out I didn't notice Spoon was the BB when I made my first post so I said wrong things. Umm let's see... 54 is just going to check the option like 99.9% you donks. Boats and quads would obviously not just flat the river. Actually his range is pretty small, it's probably pairs TT+ (maybe 88/77 but that'd need a better read on villain for turn bet + river call) and A9, maybe K9s if Spoon likes to raise that from the BB. Probably doesn't have KK/AA either or he'd lead or raise the river.

So 1 pair, pocket or otherwise, 9's thru Q's.

One thing I wish we knew was if villain had a hait of playing his draws passively and then bluffing large on a missed river, a lot of guys with his stats will do that. Or if we thought he'd play the same and then vbet thin with TT, then we can take 9x out of our call range.