Hyundai is working on two different trucks, that's why some lazy websites are confused.
Santa Cruz is based on Tucson, which means it is a compact... Most likely Santa Cruz will be the same size as Fiat Toro (based on Jeep Compass), Renault Oroch (based on Dacia Duster), and the upcoming VW Tarok (based on VW Tharu), and supposedly Ford Courier (based on TBD compact CUV).
There is another Hyundai midsize truck project which will be the same size as Ridgeline but there is conflicting report whether it is based on the Santa Fe or a completely different body on frame design.
This is not reliable but I've heard chatter among the dealers that these were to be custom modified 'on the side' rather than down the assembly line. I guess it would make some sense instead of creating new assembly processes for a limited run.
If it's $100K, that's basically Black Label Navigator pricing, that would be way out of step for the car.
If the doors are 6" Longer, they would definitely need e-closing motors in the hinges, otherwise you need a chauffeur to close them for you.
I remember riding in my grandma's '67 T-Bird Town Landau with its suicide doors, and thinking how cool that car was. I damn near bought a '64 Continental at a junkyard about 20 years ago for $300 (the body was in incredibly good shape), but I had the thought of restoring Grandma's T-Bird, so I passed on it.
Turned out that my uncle sold the T-Bird, so I should've bought the Conti...
Have you tried ProClip? Best mount for devices - been using them for over 14 years. Never tried the headrest mounts. Not cheap, but well worth it.
Google for 10% off codes or sign up for 15-20% codes from time to time.