You threw down the gauntlet Dave!
I wasn't going to attempt this given the many Plumeria, one I found looks very much like it apart from those deeper throat streaks, Vera Cruz Rose ..
http://www.flickr.com/photos/l...
I looked through 277 plants available here which are grown in Florida, nothing else comes as close but I guess there's too many of them which have colour variations.
http://www.plumeria2u.co.uk/pl...