Searching Dino Owners for Car Secific Items

I want to bring some parts to their origin owners, before I sell them unknown and they`ll never get them back::

GEARBOX M- SERIES
I have a rebuild Gearbox from an M- Series 246 GT, believed from 1971.
Part No # 607-R17/43 and Gearbox No # 867/M.
Does anybody know in which Chassis No the Geabox was build in, if the car is still existing and if so who owns it?
Warranty Card & Owners Service Book
It is for 1973 Models and was for Dino 246 GTS # 06312
seem to be delivered by Luigi Chinetti Motors INC.
Does anybody know car or Owner?

Warranty Card L- Series Dino
green Italian "Tessera Di Garanzia"
246 GT Chassis No# 01246
Delivered 30. November 1970 to Dr. Paolo Bellicardi in Bologna (Italy)
Same Questions, any info about Car and current owner?

 

Thanks a lot Marcel !