They re extremely easy to make and pretty cheap.
How to make your own towers for roof rack.
If you can use a tape measure grinder chop saw and can half ass weld you can fab these gutter mounts.
I ve always wanted a roof rack for my land cruiser but the commercially available options didn t fit my needs so i made a custom one come see how.
Remember you re drilling holes in the roof of your vehicle.
If you have factory roof racks that run from front to back you can build your own steel crossmembers using one inch square tubing cut to size and secured to the factory racks using carriage bolts.