Ha ha! I am glad someone (Petya) finally asked if A. was your bf. I had just been assuming. 

This itinerary looks awesome! I think my hubs and I may just have to copy it. I have the 100 BG tourist sites booklet as well, but after finding it impossible to get stamps at a few of the locations I just gave up. Maybe I will have to try again in the places you mentioned. I am a museum hound, so the one in Botevgrad looks/sounds like a must. 

I know I already mentioned it, but if you are looking for more ideas for weekend getaways, consider the Smolyan area (if you haven't already been). Smolyan itself isn't that great (I hate to say it as that's my husband's hometown) but the surrounding area is awesome. Shiroka Laka, Ardino, Zlatograd, and the small villages around Rudozem are my favorite. 

Thanks again for all the great travel ideas! I am ready for a weekend adventure now!