Best way to quickly remove a suburban body

[kwin]

I finally found the frame I want, Its a mid 1980's suburban. The frame thickness is .219 of an inch gmc 3/4 ton. thickest I have ever seen. I am using the frame with a 1990 body for a cummins project.
I dont need the body its a big steaming pile! So any suggestions on how to remove it quickly? I want to go pick it up in the am , bring it home, release the body from the frame and drive to the scrap yard and get rid of the body.
I only have the reailler for a day so I dont want to drag this out.

So any creative ideas on how to release the body quickly?

Thanks