You have my sympathy re the flood, that's quite a mess. The electronics might well survive if everything was switched off before it got wet. Just be very careful to ensure it's completely dry, including inside all the nooks and crannies before trying to power it up again. a hairdryer or (not too) hot air gun might help here along with a lot of patience.
I would say 'leave outside in the warm sunshine and gentle breeze to dry' but it isn't the middle of summer right now in Swindon.