Yes to all of this, as well as the tuning. Keep in mind, that 100Hz area is also a prime area for bass guitar so if you're gonna give that space to the kick then it's a good idea to give the bass guitar some love in the next range up the spectrum... ie, the 200Hz-ish range where jimbob wisely advised cutting kick drum. Now when you do that, the bass guitar is gonna sound like dog squeeze solo'd, but in tandem with the kick it will... well... KICK.
Re mic placement, again big +1 and I am a huge advocate of hard-mounting the kick drum mic inside the drum. It cleans up the stage, makes set-up faster and ensures the mic is in the exact same position every time. And make sure you use a mic that's designed for the kick drum.