How would you have ended the film?

I enjoyed the film, but like many others, I felt a little let down by the third act. So after thinking about what ending would be more satisfying for me, I came up with 3 alternative endings:

1. Months after discovering his paintings stolen, Virgil comes out of retirement and decides to conduct his first new auction. At the auction, Virgil unveils the forged automaton but presents it as an authentic Jacques de Vaucanson. He sells it to the highest bidder for an extraordinary amount. We also see that he has a new "Billy" in the crowd, who helps him collect an expensive painting of a woman that looks somewhat like Claire. Virgil, now wearing his gloves once again, goes back to the empty, hidden room in his house and hangs the first painting.

2. Instead of his paintings being stolen, Virgil chooses to publicly confess at one of his auctions to passing off authentic paintings as forgeries. He promises to hand them over and step down from his position. After public outrage, facing lawsuits, and losing everything, Virgil decides to flee to Prague with Claire to live a new life across from the clock café.

3. After finding his paintings stolen, Virgil meticulously retraces all of his steps and finds one "brush stroke" mistake that Billy made in his plan, possibly something small that's hidden in Billy's painting that reveals a trail leading back to a warehouse where Billy has stored the stolen paintings in Prague. Virgil boards a plane to Prague. Once there, he sees Claire setting up a secret meeting with an art buyer to come to the warehouse to view the newest shipment. When Claire arrives to let the buyer in, she's shocked to find Virgil there instead, waiting in the rain. Virgil enters the warehouse and sees that Billy has amassed an art collection much larger than his. Virgil begs Claire to still run away with him. She shouts at him to stop calling her Claire, that it was all an act, and that he fell in love with who he thought she was. She tells him to just go and walk away from it all.

I could write more, but those to me would have been more satisfying for me. How would you have ended the film?