I lived in Shrewsbury for a few years. I used to take the Academy Bus from the Red Bank/Lincroft park and ride right next to 109 exit of the GSP. I worked in midtown, and started at 8am. I’d have to catch a bus between 6am and 6:20. Any bus later then 6:20 I feel like you’re risking being late. To be clear the buses between 6 and 6:20 would an hour into Port Authority. Also, I worked in midtown. If you work downtown, the bus ride is a guaranteed hour and a half. I feel like it’s doable. That area is an awesome part of NJ that’s worth the commute.