There's no option to "cash in" as such with Findlay. Damage limitation maybe the best we can hope for.
He's currently sitting on a long term, lucrative contract with us. Kilmarnock are paying a small percentage of his wages with us. There's no way they would pay him anywhere near what he's currently earning, and there's no way he'll just rip up the contract and accept one on far less money. The best we can hope for is to get a higher percentage of his wages paid by either Kilmarnock or another club next season. We might, at the end of next season, be able to do a deal to get him off our books, but I think we're probably stuck with him for the next 18 months, and maybe longer. If anything happens sooner it will be because we've decided to bite the bullet and pay him off all, or a large part, of his contract.
His signing was a very expensive mistake.