My Bally Playboy has the real PITA situation of the side rails bending outward at the front, making taking off the lockdown bar a real PITA. (putting the bar back isn't a problem), so much so that I've got to fix this. I don't want to go the route of taking the side rails off, bending them to bow in, and reinstalling them, and the only thing I can think of to do is to use some epoxy adhesive to keep them touching the cabinet - but to do this, I don't how I can get around not using a clamp to hold them down while the epoxy sets.

The only clamps I have only span a few inches, but they have a screw in the middle, and I wonder about the clamps that are tied down with an impinging screw.

This looks like a durable clamp at a good price:

https://www.amazon.com/IRWIN-Tools-QUICK-GRIP-24-Inch-223124/dp/B0000CCXVI

I'd have to take off the bracket that the lock down bar affixes to, but this will work!

And as for me not figuring out this on my own:

https://media1.tenor.com/images/9bdcf150cb72ba1a7e548d3088c3d8d8/tenor.gif?itemid=15451551