Hold down for Electra Magic 80 Toilet

I have a 1998 3125King trailerManor with the Electra Magic 80 toilet.

One of the Slide Hold Downs for my Electra Magic Toilet broke when reinstalling the toilet, because the Slide EZ Valve needed to be replaced.

Tried to order a hold down from an authorized dealer and found out the hold downs are no longer made and are discontinued. Nothing on Amazon.com either.

Does anyone know of a dealer that has these in stock, since they cannot be ordered?

Is there a way to jury rig the system to hold it down tight enough?

What is the similar replacement toilet currently sold, if I have to purchase a different toilet that has it's own small black water tank like the Magic#80?

Found an Electra Magic 80 on Amazon for a little over $500. I do not want to, and won't, spend that kind of cash because a $3.00 part is discontinued.

Shawn