Rechan, I see your points now (I didn't realize you dumped Int) but let me add a note from my own experience:
I've played an archer ranger with Sneak of Shadows (using a houserule "rogue" bow). Most of the time, she gets CA (and thus sneak attack damage) from flanking -herself- and firing at point blank range. Since it's only a 1/enc thing anyway, this works out better than I would have thought, and no extra feats are necessary (though Defensive Mobility is handy sometimes). It seems like this might work for your bard, too, since it sounds like you'll have decent Con and you're probably going to want to be close enough to the front line to use your buffing powers anyway.
For your build, yeah, it looks like Cunning Ambusher is right out... but I think Two-Fisted Shooter might still be nice for a W+I build even without the extra attack. Crits don't happen that often anyway unless you're highly optimized, so it's not like you'd be missing out much with a low Dex.
I've played an archer ranger with Sneak of Shadows (using a houserule "rogue" bow). Most of the time, she gets CA (and thus sneak attack damage) from flanking -herself- and firing at point blank range. Since it's only a 1/enc thing anyway, this works out better than I would have thought, and no extra feats are necessary (though Defensive Mobility is handy sometimes). It seems like this might work for your bard, too, since it sounds like you'll have decent Con and you're probably going to want to be close enough to the front line to use your buffing powers anyway.
For your build, yeah, it looks like Cunning Ambusher is right out... but I think Two-Fisted Shooter might still be nice for a W+I build even without the extra attack. Crits don't happen that often anyway unless you're highly optimized, so it's not like you'd be missing out much with a low Dex.