Kayak on Trailer Roof Question

Thanks to all for ideas and replies. These kayaks are very light so I don't have a problem standing on the rear rack and pushing them up top and they will not stick up any higher than the a/c unit or main roof height due to slope.

Didn't think about the strap flutter and paint wear....could be the limiting reason why we can't do this....pool noodles may be worth a try.

I'd stick them on the back rack, but the scooter is there, so maybe the over cab way would be the most secure