I got my 1911 Ultra holster from Alessi holsters (google them). Just give them a call and see what they can do for you. They had great customer service and a great product from my experience. I bought the Talon holster if that helps.
To their credit, there are probably only 1 or 2 companies that advertise a custom holster for my gun and it fits like a glove.
"When a strong man, fully armed, guards his own palace, his goods are safe."