Of the Dick's Picks series both your criteria are met IMHO by DP no. 3 5/22/77 Pembroke Pines, FL and DP no. 5 12/26/79 Oakland Aud. Both are Betty Boards, Great shows, and they capture some of the best of the Dead of the late 70's
A third show which is available in an Arista commercial release with very good sound is "Nightfall Of Diamonds" captured at the Meadowlands on Oct. 16, 1989. Arista's "Dozin' At The Knick" from Albany's Knickerbocker Arena is no slouch in the performance or sound either. "Nightfall" has a Dark Star>Playin'>UJB>Drumz>Space segment that shows the band really shining at the interplay between them that was so inspired on some nights.
A third show which is available in an Arista commercial release with very good sound is "Nightfall Of Diamonds" captured at the Meadowlands on Oct. 16, 1989. Arista's "Dozin' At The Knick" from Albany's Knickerbocker Arena is no slouch in the performance or sound either. "Nightfall" has a Dark Star>Playin'>UJB>Drumz>Space segment that shows the band really shining at the interplay between them that was so inspired on some nights.