I challenge you!

maybe it would be better to abandon this idea and implement it in single-player?

Yeah, I would have dropped it right away if someone hadn't reminded me :D
Yeah, it seems like any method just ruins clickability, navigability, or performance – something like that.
Regarding taverns, there's always one hero of the native race appearing there anyway....

Added 1 hour 38 minutes ago
I uploaded a single link and added a picture and a description file. I also made some minor improvements for convenience.