Just ordered from them myself. Nothing else seems to come close. All the others had no bike carrier option and wiggled all over the place.
They will send you a pdf asking for all kinds of measurements to make sure all will fit. emailing and calling ended up with the owner, also a kayaker.
A little pricey but looks great. There was a youtube video of another brand for a lot less money, a guy that bought it was doing his best by adding bracing etc but it still moved all over the place. My time is worth more then messing around with something that needs a lot of tweaking. I should know in 2 weeks when it arrives right before our settlement on our house......good luck