As far as I know most Punch locations are existing gyms, such as Cosgrove's Results Fitness, that licensed the name to use with their KB group classes. I'm not sure if Punch does anything to help you start up a new business.
I don't think getting KB "certified" really means jack. There are kb certified instructors at my gym that are beyond horrible. Quality instruction means everything.
Cotter and Blackburn of IKFF and the AKC team (Valery Fedorenko (world champion in kettlebell sport) Cate Imes, Marty Farrell etc... are top notch. Both Cotter and Blackburn continue to study, train, and compete with Fedorenko. Mike Mahler, Steve Maxwell, and I believe DiLuglio have attended Fedorenko's workshops as well. Even Pavel has consulted with Fedorenko as well. Not that Fedorenko is the be all end all of KB knowledge, but that should tell you something.
In my opinion you'd be better off going to the IKFF in Dallas. It's over a weekend so it shouldn't interfere with business and you'll come away with a wealth of knowledge.
I'm biased, but have done RKC-style certs (Art of Strength is in this mold) and find them lacking. Plenty of good ideas but they don't touch on alot of training ideas and techniques lifters in Russia/Eastern Europe use (competitive lifters there are on a different level) - this is where the IKFF and AKC are strong.
With the IKFF you'll get a nice blend of the (real) Russian training ideas, but also some from Pavel's RKC, and martial arts/yoga based mobility and bodyweight training.
Now I hope I'm not coming across as snobby
