deadheads: Best sounding Dicks Picks....top 5

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.

"Hundred Jahr Halle" is an Arista lable commercial release. Great recordings from the epic trip to Europe in '72. I believe the Oaklahoma show you refer to is from the Zoo Amphitheater, 1980 or '81. I have the tapes but not the DP.
I guess I am partial to Dozin' as I was at that 3 night run. While the music is not that inspired (Save for the China Cat IMHO), it's well recorded, and a nice snapshot of that period.