[robin58]

BTW because I realized my question may not have been clear, look at the attached pictures (I apologize for the sketch but my AutoCAD wasn't cooperating this morning).

The yours.jpg is how it seems to me you would have to cut into your chassis to fit your crossmember, the 2.jpg is how a crossmember from flatout or progressive would fit. IMHO the way yours appears it would have to mount doesn't give you enough of a weld area.