The owners are usually registered with the roads authority of the vountry where you live but you probably got so far already. The chances are pretty slim they will help you but you've probably tried it. Otherwise try the previous owner or toyota
After reading your posts I finally got the brake drums off my 1979 bj40. First I loosed the brake cilinders by turning the adjustment wheels through the oval holes on the side facing the diff. After that I applied lots of ws-40. By hitting the drum all around from the sides it eventually popped...