Available in your price range, you can resell it when you get where you want to be and your butt won't wrinkle from setting in a puddle all the time. Easier on your back and knees, IMO, than a SOT.
As to your question I suspect you are right about weight limits being on the safe side but do not know for sure.
Cartop Kayak Carriers
YakCatcher Rod Holder
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