Can you bend it back, straight enough to get the work at your son's place done and until you can get the stabilizer bars?
I've had turnbuckles on side & toplinks "undo" themselves, just from the gentle vibration of the tractor. It has caused some embarrassing moments. As a result, I've got into the habit of socking them up good & tight with a wrench.
The stabilizer bars have been a huge improvement on our
B2320 and the
B5100.
They replace the check chains / sway turnbuckles, not the turnbuckle lifting links.
You might take a look at the crank adjustable lift links, since you're in the market.
I've seen them on some older tractors and I think AgriSupply carries them, too ...
Mark Hodge, of Stabilworks, made both and I highly recommend him, if he's still in business.