I was going to the hobby store today and as I was coming out I passed a older model Volvo the ones with the headlight wipers and a pop up headlight sprayer that sprays windshield washer fluid on them. My thought was this. Yo cut out notches on the bumper buily a small platform that would hold the heads and elevate and lock in place think James bond and when not in place would lower. It doesnt have to be that big of a platform and Gyros from a Radio controlled model could be used. Iy would be a little trial and error to be sure, But it something that would indeed Stealth the ride and the install. Oll try to find pictures of something similiar to what im talking about. But must car bumpers do have space for such a thing I believe IT'll take some work, im sorry Im not that good of a fabricator to do a mock up but jopefully someone gets my drift.