If the overpass is beyond reasonable repair, keeping things as is may not be an option.
The Dipper, Streak and Infusion are all at ground level, so restructuring there would be quick and cheap.
The ramps would create space when removed, so no problems at the Arena, the top doors are never used anyway.
Catering units are comparatively cheap, and could take up the ramp spaces.
Couple of long extra ramps, similar to the ones now, would sort Wallace out.
Tear down the overpass I say, improve access to all.
Think of the old man's knees.
Oh my God...scrap the whole idea...my beloved Crevettes!