need help pulling magnum out

I’m reminded of the episode of roadkill episode number 23 where the motorhome was recip sawed off the chassis to pull out a 440. Not been in on a pulling a engine van yet, but it doesn’t look like a happy time at all in there. Is the crossmember and front frame assembly bolted into the body or is everything welded to everything else?
yeah i got the van for 500, going to send it to a scrap yard once i get what i need off of it, im thinking about just cutting up and then lifting it out that way, then grinding off the motor mounts, but was hoping for a cleaner removal haha