YAR Relogger 4.250.0.5 works fine for me. I think I have seen auto-equip somewhere in the Trinity settings (at work, no db access here). Auto-slot skills may be problematic. It can be, probably, done inside the combat routine. Most of them do not auto-slot skills.
the bot can auto equip gear and skills up to level 70 (by default option in Trinity)...i would just level them all up at the same time...lol...stick them to nephalem rifts or bounties until you get enough decent gear to increase the level difficulty...just my opinion, but efficiency is the key here...don't do a level that will take too long or cause an account to leave and rejoin the group...upgrade rares, use blood shards, and stack up on bounties mats to help expedite your completion of gear for whatever routine you want to use for your toons...by the time you have your toons geared, you should have a good amount of keys to use for GRs after good luck and hope this helps