Mm, I'm doubtful a lot of the fandubs would sync up, since a lot recut the episodes as well. I've mulled over the possibility of including Michael Angelis' "Railway Stories", but it presents a similar problem, not to mention needing to add SFX.

One thing puzzling me is that there are "restored" versions of the first 3 or 4 series, but they only appear intermittently on compilation DVDs (except for the first, which is included on the only full series box released here in the US). These show slightly crisper images and often less screwy colors, but they're harder to track down. They also occasionally use alternate takes, some with odd goofs, which could mean more editing...