I'm thirty years older and everyone thinks I have mental isssues (especially Xist; and excepting me); I was kicked out of the gene pool after my first marriage.
Anyway, you could slant chop that sucker in the back lot of a big box store.
Assuming you don't need the headroom in back of course. Your paradigm would be the Camperworld race truck spoiler's height.
Maybe start by stuffing a pool noodle between the cab and topper?