If the data is even remotely sensitive and you simply can’t expose it you must destroy the drive. Don’t risk it.
If it doesn’t really matter just encrypt it then install windows over the encrypted drive.
For the record I have recovered data from a encrypted drive that had been wiped, encrypted, wiped and windows installed over it…
You Can always find traces of data with the right setup… and with a lab even more.
More than possible, but even more unlikely.
Hackers accessing your wifi at home is likely… far more common… and with a decent packet sniffer… a gold mine of data and credentials, possibly MiM attacks etc etc (Big maybe)
Handing over access to the hotspot is generally fine, but it’s really not that much better than handing over your home wifi password to a stranger. But only If someone really knew what they are doing would it be possible to get what they want - and in under 2 mins.
I’m sure someone know how to do it… give me enough cash I will do it….