I have also told the guy's that I run with to have a rope ready. I am planning on having a 100' rope with a float on one end & a hook on the other. If it turns ugly even with floatation it can still go down. But it should give you time to hook the rope to the bow eye.
I have pulled a jet up from the bottom & had it floating with the pump missing, The driveline let go, broke the intake & ejected the pump out the back. luckily the 19' boat sunk in 19' of water. We hooked onto it & got it up on plane. Then across the lake to next to the trailer. Winched the boat back onto the trailer. Amazingly enough after all that the reverse cable never let go. the newly rebuilt pump was not lost.
That is a damn good idea too, going to have to use that one.