Cavs of course also have a second rounder tomorrow (#53) that could be traded.
Of course, the Cavs won't do a deal witht e Haywood contract before the draft, so they would likely end up trading the rights to the player that they draft there, which is problematic because it may not be a player the team they are trying to trade with is interested in.
They could also trade the pick for a future second rounder. You might say, why would a team trade a future second rounder for a late second rounder this year, but there could be a number of reasons for that, not least of which is they simply fell with in love with a guy available at 53. That future second rounder would become a tradeable asset and could be included as the sweetener in the Haywood deal. It's not much but it is a free second rounder for simply completing some paperwork.
If that doesn't work, there are other options, such as including their #24 pick in the Haywood deal, and getting back some second rounders, either this year or (preferably) in future years. Maybe even a heavily protected future first, though that's probably less likely. Philly is the obvious candidate here. Then you would have the second rounders for a future deal where you could absorb as much as $10.5M in the the TPE generated when you deal Haywood.