Welcome to YEStalk dreamer easy. I would suggest that you try to jump on the Yes boot chain that tardis trabveller is organising - if it's not too late. She's offering up a suite of Yes shows from tours over the years.
Of course the term QUALITY YES BOOTS is subjective. To the best of my knowledge there are no soundboard shows from the GftO tours and the best audience recordings I have are maybe B+ at best. Plus, a lot of the early stuff too is audience only, although they are 'quality' to me in that they offer a chance to hear Tales complete and suchlike. Happy hunting.