I do not believe the 2 person folding middle seats are too big to ship via
UPS.  Maybe I am talking out of turn here, but last fall, Chris Turner
packaged a 3 person rear seat/bed for UPS shipment to me.  He did a
masterful job of packaging it (for a well  deserved extra fee) so that it
fit within the UPS limits .  However, I ended up taking a trip out his way,
so I actually picked it up personally.  Unfortunately, due to my lateness in
arrival, Chris had to be gone, so I never did get a chance to look inside
that barn of his to see all of the treasures that he is now selling to all
of us.

It seems to me that a 2 person middle seat (folded) can squeak under the UPS
size limits.  A triangular shape will save a lot of inches of girth, so that
length plus girth stays under the UPS limit of 130 inches.  The maximum
weight is 150 pounds, so there should be no problem there.  Hey, if the rear
seat/bed is small enough, the middle seat must not be too big!

Budd Premack
86 Syncro, 84 GL, 73 Super
Minneapolis, MN (Land of Frozen Waters)