Hold on if you have Ivan's jets just use those with the stock emulsion tubes. If you're lucky the guy you bought it from has the stock emulsion tubes then it's easy as pie, just pop in Ivan's jets, set it up a la Ivan's instructions and you're done.
If you want to get the stock tubes fast and cheap go to
www.bikebandit.com. They are $22.14. Here is a pic:
bike bandit part number: 475006-001
It's number 14 in this pic with the bad paint shop draw.
Jets are only $5 a pop so no worries there get the same that came with the kit. You'll be back up and running in no time. I'd call Ivan and explain the situation he may have some insight as well on how to get the emulsiontubes and jets cheap.