One of you will pay for the UVIP, as it is mandatory to get, or your purchase and his sale will not happen, if you want to chance it and purchase the bike that is up to you, but once you go to get the ownership put in your name, the MTO will do a UVIP and charge you the 20 bucks right on the spot, and if any issues are on there, well your left holding the bag...
I purchased 2 bikes, no UVIP provided by the seller, I really did not care, as the bikes would either be put on the road if no issues, or broken down for parts and or track bikes. I went and did the UVIP on my own, nothing was amiss and I put the bikes into my name right there and then.
if he has an old UVIP have him send it to you, fax, email etc, it will have the VIN, you can then spend the 20 bucks yourself and get an updated one, if anything is fishy you are only out 20 bucks, and if it's really bad report the guy to the MTO or Police for trying to sell something that is not on the up and up....