Why would you make 35 hives queenless?
If you were just planning on requeening, logic would dictate that you keep the old queens in case you need them. It would be hard to save all 35, but you could have probably saved a dozen or more by taking a few deeps, screwing on a solid bottom, put dividers in to split each deep into four 2 frame queen boxes. Drill an entrance for each and you would be all set.