40-80 hand

[Coilean]

If giving up for 1 bet on the river isn't really an option then the real question seems to be how often the remaining players will check behind with a hand that beats yours. I can't see you getting paid off by multiple hands and winning very often, so you should probably only check the river if you think there's better than a 50% chance someone will check a better hand behind you. It seems pretty unlikely a river bet will be raised at all here, much less by a worse hand, so I wouldn't worry much about those permutations.