Hey Seven ......
use that link that Tim posted ..... my saddle 'looks' a little bit like that double tour, however it is the 'Cowboy and Lady' model of the Corbin line.
It's just a bit smaller than the double tour, which I thought would look a little be better with the profile of the FXR.
It uses the tongue at the gas tank for mounting.
Mustang also has saddles that will fit, and also use the tongue at the tank for mounting, as does Saddleman.
I have about 12K miles on my Corbin, I'm a VERY SATISFIED customer and FAN of Corbin saddles. They will modify your saddle ONE TIME, no charge, unless you ask for something that would cause them to have to replace the entire top cover, then you'd have to pay for that. I've considered that I'd ship mine back and ask to have it cut down just a wee bit narrower in the nose section. Other than that, it's PERFECT !!
I understand now, that they will make 'some' adjustment to it before they make it, if you ask them. They did not used to do that. They will tell you, they do not make 'customized' saddles. However I've been hearing more and more guys say that Corbin has worked with them to modify their saddle.
Me, I'm sure I'll just put another 12K on it this year, and just keep on SMILING

Best of luck in your search, Please let us know what you find and decide, Thanks !