Got the 37” spare wheel and tire mounted. I removed the factory third brake light (because the spare wouldn’t fit with the third brake light) and wired in a new one by installing leds in the hub cap. I wired leds in with plugs that can be disconnected and removed.
I found a new 37” tire online. It’s a no name tire that took 8.5 ounces of weight to balance. I found the matching wheel on eBay.