Is there anyway to DIY the lower grill? (I've already done the upper one) I read that the hinged gutterguard is wide/tall enough. I thought it would be easy, or like the upper. But, I took off the bumper to double check and I realized there wasn't anything to attach the mesh to, and if I did want to do something like the first one, I'd have to do a lot of sawing.

I know that you can buy grill inserts from grilltech. Could someone tell me how to DIY one of those and then install it?