One of my other scores from DAAM was a battered '65 Chevy truck promo body, which would yield a much needed side-trimmed cargo box.

Alas, it is bonded to the main bedfloor/cab along a few of the main seams, and it ain't budging. It's not a priceless collectible, but I'm wary of causing more damage.

Guessing that scoring along the bonded seam would be a start. But not sure what solvent would flow in there that would not make a bigger mess - methylene chloride might do the trick, but it is water-thin and if it runs, look out. ( Think that is chemically similar to superglue debonder.)

Any thoughts?

Alternatively, I've been looking at the DISPAE (?) mini 'wiggle saw' - might be a cleaner solution?