A quick look at these schools' respective websites should tell you that they don't offer part-time programs. As for whether you'd be competitive, to be honest I don't know. As I said before, even though the Euro schools tend to skew a little older, you'll still be an outlier, and a lot of it will come down to your essays and luck. If you're gung ho about going, all you can do is apply and find out.
As for the US schools, a lot of the schools will likely steer you towards their part-time or executive programs. For full-time, it'll be hard to say whether you'll be competitive or not simply because you'll be a bit of a wild card - not many folks like you at your age applying, and adcoms many not know what to do with you - some may bite, some may not.
I really encourage you to do more research. Go to some MBA admissions events in your area (or travel to one). Get a feel for the various types of MBA programs (full-time, part-time, executive) based on these events -- ask admissions folks to see if they can put you in touch with current students, reach out to alums if you can, etc. Given your particular circumstance, it's really a gut call on your part whether and where you should apply (if at all), and you're best off actually meeting folks face-to-face, experiencing for yourself firsthand whether it feels right or not. Or better yet, go and visit these schools before classes get out in April (or if it's part-time or executive, I believe some have summer sessions too that you may be able to sit in on). You have the benefit of being able to telecommute, so use that to your advantage and go and visit these campuses - it will give you a much, much more substantive feel for whether it's right for you or not. In fact, you can ask as many people online as you wish, but all of that pales in comparison to just *one* physical visit to a b-school campus.