No one besides Hashem can predict the future so no human can possibly know if this idea will work.
My issue is, as I have mentioned in prior posts, that in my opinion the “age gap” is an issue- but is a byproduct of much larger issues.
One of the larger issues is the despicable behavior shown by the majority of shadchanim.
Guaranteeing that they will receive enormous payouts will just increase their terrorist tactics.
Imagine the lying, hand twisting and threatening that will go on if $13,000 is at steak.