I can recommend the folks over at SixS Partners. I am not sure if they offer customized 1 on 1. Can’t he just learn like the rest of us? Trial by (dumpster) fire…
I agree, whether 3rd-party consultants or Epicor’s Professional Services are a good way to go to get up to speed relatively quickly. In terms of server-side admin, Epicor’s Ramiro Sanchez is a great source for ensuring the Admin Console & SSMS are configured and setup properly. He’s been our go-to via Professional Services whenever we’ve needed a set of experienced eyes to make sure we configured everything properly, and getting various maintenance routines setup and scheduled.
The ELC courses for System Admin are pretty generic, and don’t cover enough to be the only source of education for a new admin. Hopefully you’re not throwing him in the deep end and expecting high-level dashboards, reports, customizations, and such on Day 1, but probably any consulting organization (Epicor or us or any other third-party Epicor consultancy) could help get him/her up to speed… keeping in mind there’s a big fire hose to be drinking from.