We're getting old and moving the very heavy, original 2+1 and rear bench seats is really difficult. There is a company that sells OEM "EuroSeats" (metrisseats.com) as replacements. Has anyone used the company or the seats, and can tell me if they are lighter and more maneuverable than the originals? I know they fold down, which is a real benefit. Any comments or suggestions would be much appreciated.