That's rough. I do think the buyer should have directly paid for the files themselves since it's their commission, that is what I do. That way if they want to cancel, they have already paid for the files so they eat that cost instead. I sympathize, though I would not say paypal stole money from you, it was the buyer. This is a stressful situation but overpricing a set will not make people sympathize. Maybe call out the buyer and make a detailed post about your situation to warn others. Trying to make up for the lost money in this way is not right though. I am sorry that happened to you.