Arrrrggggggggghhhh!!!
Must.
Jump.
In.
!!!!
Why would you NOT want to go custom for Ti???
There is NO cost savings going stock vs. custom when you get a Seven. The only thing you might save is the delivery time. Unless you are hugely rushed for a Ti bike, I'd highly recommend going custom (heck, I only waited 7 years!).
And there is no such thing as a "WSD" custom bike. Any custom frame will be a "Velobambina Specific Design".
Please read this from the Seven website on WSD bikes:
http://www.sevencycles.com/buildingb...omensbikes.php
That said...You absolutely cannot go wrong with a custom Seven or Serotta or Indy Fab. They are all marvelous bikes - of course, I am partial to Sevens!
Go custom.
Go Seven.