I don't think you missed much where the at-par special was concerned. I used
Dreams Unlimited and their BDP code for POR, and now, with the new MYW ticket pricing, I saved $600 total. At par special would have cost me $3300, but I am only spending $2700 using DU. There are 4 of us and we're going March 24-April 4. If you go before April 16, the BDP code is available through DU.