Those dashes come out Really easy after you remove the windshield. I've done many of them. Love the way they designed it. After you remove the 5 bolts under the windshield weatherstripping, You loosen a bolt under the dash on the inside of each kick panel area, And the whole thing pivots down, allowing access to unplug harnesses and cables. Then Two people can slide it right out of the car. I've always done all mine in complete dash assy , wiring and all. Never have to lay under on my back much there.
@halifaxhops