For the map, you are correct, you need the old map files since RO changed the academy several times.
I have uploaded the files here:
For a clean hercules, you should use Academy 2012 and start 2015 (2018 also works ok). I noticed that RE map cache is wrong for iz_ac02, so until this gets merged: https://github.com/HerculesWS/Hercules/pull/3316 you have to update your map cache for iz_ac02 for it to work properly.
About the combination kit, I think it is not implemented yet.