Can we get Inhibitor timers?

Actually, this was added with the SR VU. When you look at a destroyed inhibitor, there will be a glowing line that goes around the destroyed crystal. When the line makes a full circle the inhib will respawn. It's pretty subtle.

I think this would be nice.

isn't there kind of an indicator already? (though not very noticeable?) they start to reform when they're close to coming back up?

It is fairly faint though, an actual timer would be way better.