Looking for High Res Full Frame Screenshots from Back to the Future Part III

Hi everyone. I hope this is acceptable to post, given the nature of what you guys do here I am crossing my fingers you can lend a helping hand. If not, please point me in the right direction

I am a 1:1 Delorean Time Machine replica builder and I am trying to do research on one of the original cars used for filming, specifically the stunt “B” car that was used in all 3 films and ultimately hit by the train at the end of Back to the Future Part III. The car isn’t as well documented as the hero “A” car that has been restored and is still around today, so a lot of the best reference comes from the films themselves, particularly Part III since it was used for most of the train climax. Unfortunately, some of the stuff I am looking for is only visible in the full frame 35mm of the movie, being cropped out in all modern home media releases.

I was able to locate a full frame version of the movie, however it is only 720P and therefore not high quality enough to see the finer details I am trying to spot. Therefore, I am hoping that one of you might have access to a higher quality scan and can help me out with a few key frames.

Please see below for the frames I am looking for. If any of you can help I would be incredibly grateful!

This one admittedly doesn’t have much more visible than standard releases, but still figured I would include it

This one is by far the most important, those gold heatsinks up at the top of the frame are a bit of an enigma on B. This frame/other frames from this shot in good enough quality could really prove/disprove a lot of speculation I’ve had

Unfortunately after the car was hit by the train, its pieces were scattered. Some were used in replicas made by Jay Ohrberg for Universal, others went up for auction years later and are in private hands, but a vast majority of the pieces disappeared and were likely destroyed due to their damage. Therefore what we see in the films and any behind the scenes photos before filming wrapped on Part 3 are all we have for these pieces

The Sheas, a father and son duo in Massachusetts, own the body panels of the B Car, as well as one of the Desert cars with the whitewall tires, a car that Universal cut up and put on a gimble for a show at the park, and a couple of non-screenused time machine replicas, as well as many other replica and screenused pieces of BTTF memoribilia. Ive spoken with Patrick before, they are very open with what they have, which is good, but also means there’s likely no other parts from the B Car or any other car that they have that we’re unaware of. I would like to take a trip up there someday, however

I’ve asked people that have been in this hobby for decades, but they all don’t know where this missing stuff ended up either. Until someone (if anyone) comes forward with these missing pieces, the film and photos are all we have Im afraid.