Middle Pair Opening PF EP or MP, Final Table, Moderate Blinds

[Rednax]

This is more (in my mind) a general concept question than a specific situation question but I'll try to set a somewhat specific example. I'm not taking into account the exact position of the short stack or big stacks or looser prefloppers (although obviously in real-time that's necessary); I'm just trying to get a general feel for playing 77 and 88 and 99.

Final table, two stacks about 20xBB, one short stack 5x, the rest 8-15 and I'm in the middle with 10x. Couple are a little aggro pf but everybody can play ('cept maybe me). Occasionally there will be a limp or two, but generally someone will be raisng 2.5 - 4x pf, and even more occasionally someone will play back with a big reraise or allin, generally resulting in a laydown. Everybody's in the money, but everyone wants to move up. Lots of respect and showdowns for the past 30 minutes feature pairs against pairs, or pairs against overcards and it's usually only the larger of the stacks that's willing to play the overcards.

First to act from early or middle position with a medium pair 77 or 88 or 99 I just wanna push preflop. True, a standard raise lets me lay down to a reraise, but how many times is there going to be a higher pair out there? Whereas that 3x raise might get called by some overcards like KQs or even ATs (at this particular table, anyway, and wouldn't that be possible at most tables in this situation?) leaving me with a tough spot to play if any overcards hit. Yeah, I could push at that point, check and raise, check and fold, but I don't like any of those because of lack of info.

Small pair I definitely try to steal and muck pf if raised and muck post flop if called unless it's rags or otherwise good for me. But that middle pair seems too good for that treatment (but maybe it's not). The advantages of all-in pf are that I might get called by a lesser pair and that only premium overcards would call. And nobody can play back at me cheaply. Or is this just my fear talking?