93mm hubs are standard size for the R20s but on this particular bike there isn't enough clearance between the fork ends to get a wheel in (I'm using an original R20 wheel as a replacement so it's definitely the correct size).
I know that the bike had an "accident" at some point that trashed the front wheel but I don't have any other details about what exactly happened to it, so I'm thinking the front might have been run over by a car or something and that crushed the forks somewhat. They look structurally sound, but would it be a bad idea to cold-set them and draw them apart a bit, or am I possibly missing something in the way I'm trying to replace the wheel? I have no experience with vintage bikes so some guidance would be appreciated.