Spirit Spur seat motors

Hi, Have just fitted a NEW seat gearbox casing to my 1981 Spirit. These
plastic casings are made in Australia and much stronger than the
original, the PK screw assembly is replaced by small bolts & nuts. As a
non mechical person I had no problem fitting it and recommend these. I
do not make them but for group info.
Please contact me if you require this part the Australian price is
$260. about US$200.Not heavy so could post anywhere
Regards Dennis