It should be simple to get the bars to the same height as your old bike. Just take a vertical measurement from the floor to the center of the bars on the old bike and put enough spacer under the stem to get the same height on the new bike. The Addict has a 10mm lower BB, so the bars should also be 10mm lower to get the same fit.
All that said, it's not wise to be using 30-40mm of spacer under the stem. If you need the bars that high, then use a stem with more upward angle. Neither solution looks pretty, but the stem angle solution is sturdier.