shane781-
What you've proposed is dangerous, so I must state this as forcefully as possible: STOP MAKING SENSE!
Why is what you propose dangerous? Quite simply, it requires a bunch of people in various organizations and endeavors to fundamentally rethink the way they do things. If they do engage in a fundamental rethinking, their heads may hurt. They may also feel that they would have to change practices or give up real or perceived advantages. If youngsters have trouble sharing toy trains, why should oldsters not have trouble sharing real trains, real ROW, real time?
It can be done, it should be done, it would be done, but only if it can be packaged in such a way that all involved feel they will benefit, short- and long-term.
(Mods: What follows is NOT deliberate Guilford-bashing, but -- hopefully -- an illustrative example.)
Think how long from concept to execution the re-establishment of Boston-Portland passenger service took. Think how long it has taken and will yet take to extend service north of Portland. For some people in control, the ultimate form of their control is the same as a two-year-old's: "No!"
That model of capitalism, the Pennsylvania Railroad sought and accepted WPA funding (The "Stimulus Package" of more than seven decades ago) to extend electrification from Manhattan Transfer to Washington and Harrisburg, an unarguably beneficial project. Now would be the time to do what you propose, but the controllers now, as opposed to then, are not in a giving or receiving vein.
shane781, please find yourself, however many years from now, in the position of being a controller so you can say, "Yes!"
"A gray crossover is definitely not company transportation."