We'll never hear Weir more isolated than this.
But to the original poster, if you are hoping to isolate Weir to learn his style, and you're somewhat new to guitar, go as far back in time as you can, and focus on his full chord strums, his filling in the void around Jerry.
By learning his old style, you'll "round out" your own style and follow in his footsteps, become "aged' in rhythm guitar similar to him, and understand his "motivations" as you, yourself, age with your "motivations."
Trying to learn Weir's recent work, without putting in the time to see how he has gotten there, will leave you always wondering how he comes up with his ideas, and your own style will suffer because you haven't put in the time, yourself.
It's a long strange trip, but oh so rewarding if you stay the course. It comes piece by piece, and usually only to those who have the "calling."