I'm considering whether or not a 2-door would be viable for what I'd use it for, and a sticking point for me would be how far apart I can get a pair of roof rails for Thule kayak carriers - without going to something like a Gobi system, what are the maximum front to back spacing you're getting by using tracks bolted into the hardtop? I see that Rhino makes a solution that bolts to the outside, but I think the Thule ones look a lot cleaner.