[Hucky]

Can you fabricate or buy some Shovel, yes Round Nose Shovel heads like on a shovel, but sized for your needs, custom fab or something stock from the landscape supply and remove the handles and weld some tabs and paint and mount them on your system?

Not sure what the stock configuration looks like.

In the early 90s one of my racks came with this kind of mod.

Have you tried a piece of Limo 5% Window tint strip at the top of your windshield?
You can also use a piece of Vinyl UV type vinyl in Black and Black out a Sun Shield at the top of your windshield
We do this on our Race Cars? The Vinyl I speak of is used in Truck and boat lettering, signs etc...