Buff, while second level courses get pretty physical, first level isn't bad in that respect. Kneeling and cover crouch shooting are about the only things that could aggravate a bad back, and we can work around that.
On tuition, you want to address that to the host, Sand Burr Gun Ranch. Give them a call; their contacts should be on the MAG website at
http://massadayoobgroup.com.
Look forward to meeting you in Indiana.
best,
Mas