Looks like what I need is a program kinda like Guitar Pro that would let you make tabs and practice on them via an interface like Rocksmith's,
Guitar Pro is a fantastic program. It has an RSE (Real Sound Engine) which means it doesn't play awfull midi sounds, but real tones, that can be changed, the same way as in Rocksmith. Though they don't sound equally good. Acoustic and drums tones are great. With the Export wave option, it is possible to save a music file, from the selected tab(s) and tones, Guitar with drums or bass. Convert it with Audacity to ogg format, load it in EOF, import the GP5 file, and save. No need to sync, every note is in place. In the Toolkit, build up the required fields, add a tone, add DD and generate. Transfer the .parc files in the Rocksmith dlc folder and start your teaching lesson. It take less then 10minutes. My release of Dueling Banjo was made that way.