[PainterDude]

The large holes front & rear on bottom of pan are most likely drains for fluid, they would normally have a rubber plug installed... I've mounted my share of race bodies in 20 years, sometimes you just need to improvise & don't overthink things... Based on your pictures I would just make a simple aluminum bracket that can extend from the belly pan to the factory mount, just a simple rectangular piece of sheet aluminum (you can purchase at your local home improvement store) cut to length will do the trick, drill a hole in both ends, drill hole in belly pan & attach with bolt & nut, attach other end to factory location with either D-zus or oem fastener... That should stabilize the belly.. The front mounts in the chin area, around oil cooler, under radiator I normally leave off anyway to ease removal of lower...

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