Think this might be a long shot but may as well ask
Rear torsion bars 24.5mm (m030 option for early 944 and 924S -86) or the later 25.5mm ones
Front springs (m030 option for early 944 and 924S -86) Height removed from car = 359mm, wire thickness =12.3mm and should have colour marking of 1, 2 or 3 dots of red (needs to be matched pair i.e both have same markings)
Still keen to get my hands on the above, however I will consider the 24mm torsion bars from an S2 if anyone has some lying around.