Semi Trailer Floors reduced to kindling, steel and aluminum

Started yet another cleanup project.
Remove the remnants of 15 semi van trailers abandoned in a warehouse parking lot.
Previous scrapper took the "easy stuff" and skipped the state.
He left behind about 300' of floor sections, back doors, wood / plywood piles, and tires.
I'm taking care of all the metal and wood, owner of property taking care of tires.
I rented a concrete breaker for my Bobcat to pound all the wood floors off the deck frames, worked pretty slick!
I'm left with piles of steel cross members / aluminum extrusions and a mountain of kindling, looks like red oak. Wood pile is 20' across and 6' tall.
Now to fire up the torch to separate the aluminum.