Frank,
If you think you might get a bit bored and have some time on your hands while in Ukraine, drop me a line and I'll send you some contact information for a friend of mine in Lviv. He is a teacher at the Institute of Music there and IIRC, his specialty is guitar. He is VERY much into the music scene in Ukraine - and I am sure he'd love to compare 'notes' with you (pun intended --smile--).
Also - if you can spare the time, Lviv is a wonderful city to visit. It is in western Ukraine - NOT in the direction you are traveling presently - but since your plans might be flexible, I thought I'd mention it.
Good luck,
- Dan