Return this is a sad situation. Did you have a down payment on the bike? If so then the dealership has to produce a bike (buy it from another dealer) for you. That's the law (at least here in Calif. it is). This happended to me before, but they told me "oh don't worry about it, you don't need a deposit". I insist on it now, just for that reason.
If you didn't and have given up hope, write a letter to your dealership and ask them to be placed on the list for the 05 model. You'll have to put in there, "assuming there is an 05 model CVO Screamin Eagle Electra Glide". Mention to them that you will take the responsability of contacting them immediatly after the dealers show in Aug. to confirm the order and give them a deposit at that time. Tell them that you look forward to their response, then put it in the mail.
Wether they commit to that or not. Mid summer find out when, exactly, the dealers show is over. The day that they're back, go see them and place your reservation.
Hang with me......I'm almost done here. You might consider rather than do a bunch of work to the motor in the Ultra Classic, order a factory 103", pull out the stock 88" motor and sell it. Just an idea.