The unit weighs 165lb. Any std racks should work, maybe just get the OEM kit? Does the vendor make any recommendations?

 

Thule roof Racks with std Roof rails is very perfect

 

If you want to pay an arm and a leg you can get thule. I got some cheapies off Amazon that claim they are rated for 260 lbs. I haven’t tested max weight but they seem solidly constructed and fit well and handle my ski box fine.