I have the stealth rack and I think I paid around $3,600 for everything . Gobi installed the rack for free, but I paid extra for the light bars and wiring and mounts for axe and shovel.
Check out this thread starting at post 29 Best roof rack for 2014 grand cherokee
And the "Roof Basket" thread starting with post 23 for more specifics without reposting a lot of stuff or PM and I'll reply too.
Sent using JeepGarage