When I was in high school in the 80's, I worked part time in an audio store. Although not freakishly high end, the store sold McIntosh, Tandberg, Yamaha, Dahlquist and KEF, among other good brands.
By working nights and weekends, I cobbled together a system with Magneplanar IIBs, driven by a Hafler DH 500 am.
My boss who ran the store came over for a demo and said it was the "best system he had ever heard!"
Having moved up from Ibs to IIbs to IIIas, Apogees, Martin Logans, and now Tympani IVas, my experience is that any gains in "resolution" or "air" from eletrostatics or ribbons typically come with the benefit of more detail and the ability to listen at lower volumes, but the price tag of being less forgiving and/or more difficult to match with associated components.
So further to another recent thread praising vintage gear, you might just keep and enjoy them. If you absolutely have to spend money, you might throw power at them.