Flap for front of bed

So I pulled about 10 gallons of leaves and mulch out from the engine area on one of our X1100c units. I'm surprised that nothing has caught fire yet with all this crap in there. It is obviously coming over the front bed rail between the cab and bed. I don't know how Kubota hasn't realized this isn't good and put a flap on there but they haven't.

I have some heavy rubber sheet and stainless flat stock and I was going to make a flap to keep the stuff out but was looking to see if anybody...

Flap for front of bed

Flap for front of bed