Hand2:
I find it tough to represent trips these days... If you really want to rep it reraise flop smallish and barrel.
Or bet bigger on scarier cards.

In hand 1 I get myself in a world of hurt barreling so i try not to do it. Especially not against someone whose stats look stationy. But I agree with the rest about the bet sizing and would bet something like 32-38 on the river.