We had an Argosy twin but looked a long time and didn't like how crammed the sideways queens were in 25-footers. Personal taste... So we certainly ordered the twins when we got our '06 Safari.
There currently is a small outside storage compartment under the curbside head of your bed. Our twin bed 25' FB has a storage compartment twice that length under the roadside bed. And about a 5' wide storage compartment right over the battery box. There are also more upper hanging cabinets over the bed. A pro or very
experienced restorer would do best at giving you something like an OEM 25' FB twin bed unit.
A different unit but the same question - http://www.airforums.com/forums/f46/...ins-47227.html
I need to start a thread with photo documentation of these twin bed benefits. Big as it is, I have mixed feelings about the front compartment. It leaks a bit and the trailer frame flexes a fair amount in this area. We can't open it when our WD bars are engaged.