Just got this Email which may help you (and shock you!)
Thank you for your inquiry. We do manufacture a child auxillary seat
for the Ce 152. Each seat assembly includes a seat back, seat bottom,
one seat belt, installation instructions with diagram, and all the
hardware and brackets necessary to complete the installation. The seat
is FAA/STC Approved.
We sell the seat without upholstery for $1445.00. If you would like
upholstery added...the cost is an additional $150.00 (red, tan, blue,
gray, and maroon).
As stated above, the seat is FAA Approved. If you will require
additional approval from your country's Aviation Authority, we will be
happy to work with them through our FAA to get you your approval. If
there are any costs incurred during this process, you will be
responsible for those as well.
If you have any questions, please do not hesitate to contact me. I have
attached a Products Data Sheet and diagram of the seat. I have also
attached a photo of a tan seat installed.
Thank you for the opportunity to quote you prices.
Chuck Koch
Aviation Fabricators/Central Airmotive
805 N 4th Street
Clinton, MO 64735
(660)885-7531