Mendonjo,
The key thing to consider about cutting out the kick panels is that these cabs are uni-body construction. This means that they are constructed entirely of sheet metal spot-welded together in such a way as to provide for structural integrity. Cutting out the kick panels may well put added pressure on the inner-to-outer cowl and the outer cowl. And since these are at the bottom of the cab, there is a lot of weight bearing down on this area. I wouldn't do it.
