I really like both of those guys, just never thought they were considered underrated. Lots of accolades thrown their way. Same with Mark Knopfler on some other posts. Seeing MK live up close is a freaking thrill of a lifetime. Sadly, he knows his best days are behind him and probably won’t tour anymore.Buckingham is a great choice. I would also go with Michael Campbell (Tom Petty & the Heartbreakers). Just has incredible tone that captures the spirit of the 60's.