I agree that your friend should look at Hostle Shoppe. I've always been pleased with their service, etc.
One other company she could consider is Lightfoot Cycles.
http://www.lightfootcycles.com/trikes.php
Their trikes are taller (easier to get on and off of) than the general run of recumbent trikes - if that's a problem.
I've been considering getting one of their trikes for touring. They seem well suited for that - or general grocery-getting.
Give big space to the festive dog that make sport in the roadway. Avoid entanglement with your wheel spoke.
(Sign in Japan)
1978 Raleigh Gran Prix
2003 EZ Sport AX