Assume, for a moment, you get from EDI to EWR. Now you're standing in front of US immigration. "Show me the return half of your ticket" (you hand over the ticket in the Maiden name) "Who is <Maiden Name>? You haven't given me a passport for <Maiden Name>".
And let's assume you get through that hurdle (yeah, right) what about the check in staff at MCO when you want to come home?
This has too many risks. Pay up. Put it right.