Spent most of this afternoon and evening tampering with it, and it looks decent, considering. It's especially interesting where it intercuts between two simultaneous adventures at once in 1955 (and when Marty returns to 1985 to see Doc get shot again).
If someone could create an awesome logo to accompany it, give the appearance of not just an ameature geek editing at home. This will probably be a two disc set. 1885-1955 on disc 1, with 1985-2015 on disc 2.
Any other help or suggestions would be great, it's not too late.