soooo, you limped in pre with T3s, then decide to check back ten high with literally one of the best flops you could hope for when playing T3s, picked up a nut turn to give you an open ender + flush draw, flicked out a turn bet, and got some luck and hit the river, at which point you decide to toss in an overbet, because he has shown nothing but strength throughout the entire hand, and he will undoubtedly call an overbet after playing the hand passive??
I mean thankfully he showed up with a hand he cannot fold at that point as played, but I think betting something along the lines of 40% to target his 2x, 3x, 5x hands that you almost certainly fold out with an overbet for his entire stack on the river.