you get aluminum at a Hardware store... and you can get clamp bolts or sumthing... or be redneck and use ducktape!... lol na just like C bolts or sumtin.. or find a emty mount and make a adaptor for it to fit... i dont know i have a rapta not warria
If you get some of the thicker stuff you can anneal it with an oxy-acetylene torch prior to shaping so it will be softer. Then when your done you can quench it to get some of the stiffness back.
~Bill