Is it possible for me to reasonably complete this project?

TLDR; working on a project with huge .mxf files, need to know if my system is even capable of handling them.

Basically I freelance edit for an ad agency that mainly makes ads for social. We have ties with a client that had a TV ad made by a diff ad agency. They asked us if we can make a few edits to the vid and we agreed before fully understanding the scope of the project (our bad).

Originally they had sent over a 3TB + Google Drive before we requested physical drives for the footage and assets. Got the drives but they were formatted incorrectly and not compatible with PC.

I used HFSE Explorer to access the files and extracted them onto a compatible drive, had to go through and manually re-link all of the assets unfortunately because whoever edited the first few cuts was pulling from a ton of different drives.

I finally got all the assets linked, but now it's looking like I have no access to any previously made proxy files so I'll have to proxy the files again myself. The largest file I saw was a 60gb clip (probably around 3 mins in length) the footage is all shot .mxf so the files are huuuuuuuuge.

I have a budget freelancer's setup that's capable of editing 4k files no problem but I've never yet encountered files THIS big. Every time I load premiere the screen just blanks out and stays like that until I restart my PC like 5 times (pic attached - see "media pending' pic).

I was able to get the project open a few times, and when I tried to proxy the footage, both Premiere and Media Encoder crashed (tried about 20 times).

I've spent the last 5 hrs doing everything I can think of in terms of cache clearing. preference resetting, etc.

I don't think transcoding the footage into a diff file format is a good idea because since this is a TV ad, I'd assume the .mxf files are there for a reason and wouldn't want to send over the project with .mp4 formatted vids (idk really first time doing anything for TV so not super sure of the protocol there).

I've attached a pic of my specs as well, would anyone be able to tell me if this is even possible to do on my PC? And if so what are some next steps that I can take in order to speed this process up as much as possible? Anything would be greatly appreciated thanks!