[JohnW63]

The first and forth videos would be more travis picking style. Alternating bass strings with the thumb. The middle two are jazz solo style, I would say. None ore super fast, so they are with in reach of people not amazingly skilled. I bookmarked the two middle ones.

"My only question--how do I get better at arpeggiating chords in that exaggerated jazzy way he is displaying ? "

Practice, practice, practice. You need to work up to having finger independence. It's not at all easy, to begin with. Maybe a bit easier for you right handed folk, but as a lefty, playing right, it takes some real hours going slow and building up over time.

Let me know how the books you chose work out.