At around $35/seat it would be a challenge. My instinct says you'd be
better off marketing towards people who have the financial means to pay
for their transportation and are willing to pay for the speed of air
travel vs. driving their own car. The greyhound pax are people who
don't drive their own car because they can't afford to travel by car.
Marketing to the bottom of the market is always more challending than
marketing to the top where you can compete with alternatives on service
not just on price.

-Robert