nice pix and recording.
I'm meticulous about keeping my shiny black piano clean outin so i know how you feel about it looking nice and but being a magnet for every smudge, swirl , mark, etc.
one of my previous techs who's a Steinway tech for an all Steinway school did a lot of work on my piano, especially in the action, I got to pick his brain a lot with the many calls to him to get stuff worked out on mine (eventually we exorcised all pianos demons and it's been problem free for a few years now).
i asked him how bad is a cracked soundboard, he said believe it or not, it can be not that big a deal, actually trying to fix a cracked soundboard can be worse, since if the sound doesn't suffer from visible surface crack of imperfection, just leave it alone since some compounds/glue etc used in 'repairing' can later get knocked lose in the board and then the sound can cause an unfix-able 'buzz' or vibration later on and it will drive you nuts.
it's a lovely piano, I would likely get in there and give it a good 'dry dust/dry clean' , i found that gettiing a hair drying that has a 'heating element off' function and just runds the blower to blow room temp/cold air works well, i open the piano up and get in there and blow all sorts of dust, hair crud out every so often. I keep my piano completely closed under two piano covers 95% of the time now so not much of an issue but was super effective at my old place when i opened it up more.
as for any pedal squeaks, you tech should have access to a dry power/graphite powder lubricant. No grease/liquid based, that's temporary and will eventually gunk up, my tech said he took a course in training called 'find that squeak' and it's what his instructor told him to use, and i haven't had a reoccurance of pedal squeek in years since that initial fix. worth exploring.
is your tech going to fine regulate your action? I wonder if your hammers are squared up/level, mine needs it but it's a timely/expensive job....

how exciting.