Hey Barry - welcome to LQ.
Note: it is a very bad idea to hand out your personal phone. Instead, set up a private email in your profile
. Members know to contact you by private message, and you can swap details there. Otherwise you risk stuff like identity theft and just plain annoying phone calls from anti-linux trolls.
Would your group be willing to be tutored by remote teaching methods?
This could be set up real-time on a schedule - your first lesson would be setting this up.
This would also be a lot cheaper than face-to-face, and allow you to draw from an international pool.
You should realise you are over-paying.
Specific questions would be answered free of charge and most linux geeks would give you a group discount. I understand a night-school tutor would expect $100-200 per lesson for example. There are also a lot of tutorials at different levels online - including some video tutorials. You are encouraged to sample these too.
And, there is are Indiana GNU/Linux Users Groups.
... they will know who to contact in your area.