Well, beyond Timeless Simple the minimal version is 3x per week, 2x per week if you are following a "serious strength program". In a lot of Pavel's plans there are only 2-3 conditioning days (Occam's Razor, Total Package, RoP, PM, ETK+, Q&D, Long Rests TSC plan, Men's Health swing plan ...), so I guess you can work with that. This might slow down your progress somewhat, which is not that big a deal if you are in it for the long run anyway.
Q&D is designed to be very time efficient, also for phases when you don't have much time but want to maintain your strength and conditioning. But it is for more advanced trainees.
ROP is the flagship plan in "Enter the Kettlebell" (ETK), known for its C&P ladders.