I'll do a drawing on the access ramp project. Its to enable road vehicles enter from street level at grade across sidewalk. Been thinking how to close threshold under rolling door. I think the angle needs 18' run for loads to clear raised door, and truncate at the inside 'jamb'. A second hinged ramp would connect grade and truncate end. Like a lift gate or WWII landing craft ramp, just not olive drab, 11 tons, or any opposing troops! Same exterior wall, east as post #2,
Different than load ramp, also needed eventually. I'd thought of articulating ramps, there were some removed from a warehouse, too $$ intense for rare use. Instead, a portable board with rectangular forklift eyes. When building was erected, truck-beds were lower. Sometime back the rear of the structure was torn down and a concrete ramp poured from existing floor to modern flatbed height, it's 20' long and 8' wide. West wall redone in cinder block and rollup door. I have a pair of bolt-on sturdy rubber stops, and vertical ladder dockside for the driver.
I like the Kuwaiti solution but haven't their deep pockets. Be nice though, preserve flat floor when truck isn't indoors...Hate to guess cost of excavation, cylinders, pump, hoses, hinge, locks and switchgear to level 60 or 70k lbs.

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