At a bare minimum, print out your elogbook and have it bound nicely. They will want hardcopy they can review. That may change someday, but unless they specifically tell you to just bring a USB stick, I'd show up with hardcopy.
I'd also bring your original paper logbook with all of your dual-received signatures and training endorsements. You can probably get away going forward with only logging things which require signature. That gives them a warm fuzzy about the authenticity of your time, and they may also use that as insight into how detail-oriented you are.
I keep my paper book up to date, but I only log GA. Every year I make a single entry to cover all 121 time for the previous year. That way it all adds up. If I switch airplanes, I'll have two 121 entries.