First, sorry to hear that!
Are you sure the cast piece Murrays sells actually fits the carbon mast? Be aware that their are aluminum inter 20 masts floating around, with associate parts, as the I20 carbon masts became difficult/expensive/impossible to source.
Anyway, shoot me some photos at samc99us AT gmail DOT com and I'll see if yours is repairable.
It fits... it is factory part #31211. I put one on a few years back when the carbon fiber ones were back ordered and the cost went up significantly...
