Hello Roland,
I know someone here in England who had his 142 restored about 8 years ago.
The car is stunning.
If you wish, please pm me your email address and I will send it to him for him to respond.
This is his Lola:
Secondly you could consider Sean at McClurg motorsport who I know well and who has worked on my chassis and a great number of other cars from this era of race car design over many years.
sean@McClurgMotorsport.com