Yes, I'd gladly pay for training at the rate of about $50/hr of instruction if the class is smallish, 3-5 students. Scheduling large blocks of time is difficult so I'd prefer 2-3 classes of 1-3 hours each. Actually I'd love more one on one coaching/training myself. For that I'd expect to pay more, up to $75-100/hour but I'd like that to be focused with only me as the student.
I second the it's hard to concentrate for more than about 2 hours without breaks. Plus as an older learner I need time to assimilate what I've been told, to try out the new techniques that are muscle memory builders and so on.
I've only been shooting handguns for about a year. Here are things I'd love to see offered that aren't:
Extensive gun cleaning class. All the ins and outs, options, why you choose one type of cleaner vs another, with practical practice disassembling and cleaning a wide variety of guns. Everything from several types of handguns to rifles and shotguns. Could be a 2-4 hour class all at once.
Holster fashion. Get everyone you possibly can to bring all the holsters they own and guns to fit and everyone gets to try all sorts of different models and holsters etc. I'd like that to be a woman only class, I want to feel comfortable dropping my pants to put on an IWB holster and to bring several sets of clothing to see what works with each type but I'd love the men I know to volunteer to let the preferably female instructor borrow their holsters and gun collection for it. Separate into several classes, OWB, IWB, other (shoulder, bra etc) and off body choices. About an hour per class.
One on one dry fire and positioning class. Run through some IDPA or similar scenarios but dry fire, perhaps video taped with an instructor right behind you stopping you to correct position or suggest alternatives. Include how to reload fast and efficiently, how to carry reloads in a real world scenario and so on. 1-2 hours.
Follow the above with a live fire version a day or so later, same scenarios and then add some new ones.
Team defense of your house. If you and your SO both carry, training as a team so that you know how to both react and work together in a home defense situation. Perhaps even some team IDPA style stages. No longer than 8 hours, total but split into 4 2 hour sessions. Lecture of basics of home defense (setting up safe rooms, clearing lines of fire, proper procedures and some role playing scenarios) dry fire practice in realistic mock-ups, live fire in the same, final 2 hours bring your own house floorplan and get help deciding how to apply what you have learned to your personal situation.
Reloading basics. How to get started, what tools are required, what you might want to add, and practice actually reloading under the eye of someone skilled in that art.
Self defense against 4 leggeds. Basic behavior of the common predators, discussion of best caliber and ammo for various common local issues. short class, maybe 1 hour lecture. Followed up by range practice with all the suggested weapons/calibers. Important esp. for those of us who've been told we can't fire, say a .357 or a .40 S&W yet those are the only sizes suitable for our threats. I was told that those were "too much for a woman to handle" yet they are not if done right. I was proud of making the 35 yard shot on a steel target w/o hitting the no shoot just in front on the first shot at my last IDPA shoot with my new M&P 40. If I can do it and learn in 1 year so can others and we don't need to be told we can't! That was a very realistic scenario for the threats I might face, sheep in front of a bear, mountain lion or coyote a ways away from me so I loved having that in the shoot.
Just a few thoughts this am.