I'm not sure exactly what you guys are looking for. If the instruction you seek includes defense against Gun, Stick, Knife...then there are better systems than Krav Maga in my opinion.
I'm not "slamming" Krav Maga, the system is meant to be taught so that the techniques are easily learned, and are (for the most part) effective on the street, and it certainly has its merits.
I don't care for the way that their Gun techniques fail to control the weapon. Many times you see the arm being "restrained" while a strike is being delivered, but unless you actually control the weapon...then it is easily articulated and you end up shot anyway. Knife techniques (not much better IMO).
Of course, techniques might vary some from one instructor to another, but I'd go and watch before committing to anything.
If you guys are not too far from Rockwall, you can go to Paul Britt's place and receive first class instruction from a cop who's "been there and done that."
We both trained under the same instructors, and I know he offers a free week of instruction to let you see if the system is what you want. I am not trying to put a "plug" in for him, there are other good systems out there besides his. I believe he also offers seminars...that can be tailored toward any particular area of defense.
http://www.gohomealive.com/ (google this if the link doesn't work)