Sorry to hear about your Health issue; I know
for me when not Rehearsing or Gigging I slip into a slight depression and use buying new stuff as a lift. Been that way since 1975
Right now setup is; Fender Ultra Precision--- Markbass CMD 121P with a 2007 A/B combo head along with another 2015 121P.
I use 2015 Combo as extension speaker for 2007 combo head and have combo head in 2015 as backup Amp.
Yes I perceive the 2007 combo head to be
very slightly more to my liking
I was looking for extension speaker and backup amp for my 121p[NY 121 & Nano] when head had dreaded power up problem;
So I bought another 121p and used Cab in Bad head one as extension speaker.
Then found older A/B Combo head for sale here and got that as backup amp [ put in combo to replace problem head.] but now use as main amp
Now I have 'matched' cab's and similar backup head; hope this makes sense