I've got a Hoppe Fairing, using the Clearview (all OEM mounting hardware) with the Tri-Pouch, but no Vent. Do yourself a favor, and go to the hardware store, and get replacement bolts that are 1/4" longer than stock (for mounting the shield to the brackets/stays). The Clearview will be thicker, and believe me, you will be happy you have the longer bolts

As you can see in the picture, the Tri-Pouch is maybe 3" above the chrome stay (on the horizontal). I'd say if the vent is 3" or more, above the holes in the shield that you mount the pouch to, you should be OK.

Black Dog