I removed the dash on our 05 Dolphin a few years ago. No hinges, just screws.
The instrument cluster, switch/radio panels on each side of cluster panel, both center drawer and sliding work station table, all air ducts, panel under steering column, rear cam monitor, 2 windshield defrosting ducts under dash at front, and screws at various locations all have to be removed. I un-plugged wiring harnesses behind the left and right switch and radio panels and completely removed these panels plus inst. cluster. That also meant removing screws for HVAC dash control panel. When almost all was disconnected, I lifted each end of the dash up and set on blocks or anything to hold it elevated. Then you can see the 2 windshield defrost ducts that need it be disconnected, either by cutting or disconnecting inside engine bay front door. Sounds like a big job, but time wise was maybe 2 hours, but it is possible. Maybe make some notes along the way to help remember where screws go, maybe even label some wires/plugs.
Ellen & Greg
08 National Dolphin DL-35Ci, Kelderman Air Ride, Rear Trac Bar
Workhorse W22, RoadMaster Rear Sway Bar, Towing 08 Smart Car