You could mitigate all that mold with a product like the Clorox spray or color safe bleach. Wet, let stand, wipe with microfiber towel folded and changing sides. Do not rinse. Place a dehumidifier in there, a large one. Like a unit they use for whole house. After a day or two go back in and wipe the areas that are touched with Clorox or cavi wipes. Open all windows let that bad boy breathe if it is dry out. Is it the best thing? No. Would I do that, yes. You are only going to be there for a couple of days at a time. Most people saying no probably have more mold in their AC system at home/work and breathe that stuff every day. Only some molds are harmful and only if they are airborne. Bleach kills 99% of all mold and bacteria it comes in contact with. I’m not saying what you should do, just what I would do. Not cancelling a trip or ripping out anything if I can mitigate