If you've got 3, maybe rent a plasma cutter?
Bottom-of-the-line 20amp unit would make short work of it.
And, if you're looking to build a stand, you can make all your cuts with it.
Local equipment rental shop here charges $75/day.
Making the world a bitter place, one IBU at a time.
Axé Cidery and Aleworks
Primary: Social Lubricant
Secondary: Tongue Oil
Lagering: Icy Paralyzer
Bottle conditioning: Liquid Courage
Drinking: Loud Mouth Soup