* acquire a vehicle fitting your needs.
Factory engineers get 'the big bux' to fiddle with the potential liabilities of frame flex leading to failures.
'Yes', any frame can be stretched to any length.
Any heavy-truck shop can do this.
Ask around, you can probably locate a vehicle in a shop in the process of a stretch.
After you establish your Requirements Statement, you can choose to a) shrink your needs, or b) sink a bundle into a declining asset (aka 'liability').
Quit them tuba lessons, take up harmonica.