How cooked am I? Can I change the eye to eye?

I bought this used on eBay, from a seller that doesn’t accept returns. Their description said it came off of a YT Capra (Capra uses a 230x65mm) and I’ve been in major need of a rear shock that holds more volume than my current rear. My bike takes a 230x65mm rear shock so I thought hell yeah. It got here today and turns out it’s a 222x65mm… I don’t think the seller was blatantly trying to be misinforming but it stinks because I’ve got a ride coming up soon. What are my options for lengthening the eye to eye??? My budget for bike upgrades is swamped after this because I limit myself to a certain percentage of my budget for cycling. Thanks everyone!