Posted for "genemartin" <genemartin@enid.com>:

 Hi Roger...for my 320 I got mattress topper for a king or queen bed from over
stock .com so I could cut a full length piece for each seat and then got some
of the good seat foam squares of various collars 1" thick to build up the
bottom and back and then got some covers from Wal-Mart aviation
dept......tacky but comfortable.
 Gene