Should I attempt to fix the current setup, or should I wipe it and try out one of the other setups, or just go for a OS3.9+BB1-4 configuration?
OS3.9+BB4 would be the best option. V1.1 is available from
http://amigan.1emu.net/releases/BoingBags3&4.lha , other sites may have obsolete versions.