Steve has a very good point. Marketing can not be overlooked if you want to make a business out of it.
Example: Joe has a P-51 sitting there to give you a war bird ride, and Tom has a T-6. You want to go for a ride and show your buddies... which you going to choose?
Energy management is what must be learned. Knowing or feeling the energy changes and to be able to smoothly put the tires where you want!
Frankly, to actually hone skills and get students the ability to actually land crazy places, I would prefer my old champ to teach them, put VG's and 26" bush wheels on and go, (it already had hydraulic brakes). Lots to be said for lower power, and no flaps when getting a handle on spot landing.
A training cub, with marketing in mind for me would be a stripped 150 hp with a 2" Scott tailwheel and 26" tires, VG's and very little else. I would have a set of 31" on wheels ready to install if you get a group ready to 'go adventure' and have a special charge for that...
I would never use goodyears, as part of the training should be braking on landing with the tail up. If you get aggressive with Goodyears you can spin them and things go south quick. Small tailwheel to limit shimmy, and most of your training should be done on at least semi solid surface lest you really want to charge lots for repairs.
150 is a smoother engine, less vibration and less per hour cost to run.
I would start every student with smooth takeoffs- pre set flaps before power, and just let them get a feel. Then it would be learning the approach and repeated smooth approaches to a landing point, focused on smooth and small power adjustments and pitch changes. Get them landing on the spot. On takeoffs they need to call the lift off spot.
Once it is all working for them, having other places to go. It is all well and good to put cones and chalk lines on the ground, but a big part of the game is making the plane perform with different sight pictures and obstacles. A cliff at the end of the runway is a difficult approach- no way to come in using ground effect, so you have to come down in a descent and spot it right on, often there will be a sinker right there also- trees with a gap along the side will allow wind to come across in little gusts... This is why it is good to have folks experience different places, and as said before not having markings or a sock to tell you what and where can be a challenge on it's own.
The little bit I have gotten to do in the North East was not terribly technical or complicated for me. It was apparent that one needed to have basic control understanding to be successful following others around, as they have some not so easy places to land. Not insurmountable for the average person either, but I saw enough places that were 'non-standard' that could easily develop pilots from 100x4000' runway folks into guys that demand precision from themselves!!
Then again, there is that blue RV-4 with shopping cart wheels that seems to be almost everywhere I went;-)
I hope you are able to do it, and have fun with it!
George