Sorry to hear that.
My mom who is 87, has been dealing with mild symptoms(shaky left hand) for about 25 years which has resulted in her having to teach herself to write with her right hand. She is blessed that it has not progressed any further.
Stay as active as you possibly can.
To me the term "Closeout" suggests they no longer plan to stock the item, hence, they no longer need a "demo" pair. Many stores/sites have bargain sections where items are offered at a discount, due to open box, refurbished, dent & scratch, etc., but the term "closeout" typically ls reserved for something else entirely.
If you're looking at low frequency only, I find that doing each La Scala one at a time--without sub on--will give you measurements that will be easier to see the actual frequency response without comb filtering. The human hearing system is quite tolerant of comb filtering, but the eyes are much less tolerant. Then you can add the sub to see the time domain effects in the spectrum and waterfall plots.
Otherwise, if you're doing a full sweep (20-20k Hz), I'd also recommend doing those measurements one La Scala at a time with the microphone at one metre in front of the bass bin/midrange horn mouths. That will avoid most of the room reflections that can make reading the plots more difficult.