End of October has been true in the past, but this yr has been so cool & cloudy, maybe earlier. I’d put a black garbage bag over the rack that’s in the 4th picture. (Increase the heat & humidity). Leave enough holes to keep it from becoming a fungal sauna. When it’s obvious we won’t get more warm days, cut the rack off & finish ripening in your garage. If it’s mature enough, it’ll ripen (like what grocery stores sell).
I have a question for you. I have an immature Goldfinger. How high is the crook (or upside down “U”) off the ground? And do yours need to be propped? I’ve had other kinds of bananas that needed no propping for years; then when a really bountiful year came, & the rack was unusually heavy it had to be propped. (One that wasn’t propped actually broke.). So I want to make an adjustable prop ahead of time that’ll accomodate the Goldfinger’s height if needed.