The good news is that I'm in Canada where rabbit vaccinations aren't required. Also, I went to his rabbitry when I picked him up, it's indoors and there are no horses or similar animals around.
I will have his blood work done when he's neutered. Vets charge insane prices for "exotics" here, they are like used car salesmen. Pushing overpriced low quality "prescription" diets on healthy pets is a common tactic, along with pushing unnecessary tests to jack the bill up even further.
Based on my experience with vets around here, if I took him in this week for blood work, then went back a month later for a neuter, they'd demand another full set of tests to the tune of $2-300 dollars "just in case something's changed". This happened to me once when I was trying to get a kitten spayed. They demanded I bring her in for blood work 3 weeks before the spay, then after the spay presented me with a bill which included the exact same tests a second time, which they performed without my consent right before the surgery.
These vets here are so bad that a national TV consumer program did a story about their greed. They took a dog which had been checked by their vet, to several vets along with a hidden camera. Every vet gave different findings, almost all falsely diagnosed non-existent ailments, all pressured the owner to buy prescription diets, and all demanded that unnecessary and expensive tests be done. The greediest vet featured was an exotics/avian vet I had used for my parrot. The first time I walked in their door I was handed a folder containing a lengthy list of tests totaling $700 and told I "must" get these done every year! I was just there for a beak trim - which they charged $75 for. And, they demanded I buy their overpriced "organic" pellets, $50 for a two pound bag. I ended up learning to trim his beak on my own rather than hand my money to that shark.
So it's good to know he doesn't need shots at least, but I'm glad I asked about it. I'd feel terrible if he got sick and died because I didn't know he needed certain shots.