Thanks for the input. My thoughts on it for being high are to keep the departure angle as great as possible. I could have lowered it a few inches, and gained some rear view at the sacrifice of dragging more while off road. I have tried to plan ahead for that, and I will be installing a camera and monitor setup for the rear(and other cameras too). I have it offset as the carrier will also be transporting more than just the spare.
I'll attach a couple photos to give an idea of the end game. Also, after I return from Colorado in July, the factory fuel tank will be removed. This will be relocated to the now vacant spare tire area by a custom built fuel cell. The goal is 20+ gal while keeping the clearance as high as possible. The reason for the large overall shape of the carrier is there will be a fold down table built in for cooking etc when swung open.