Hate the idea of no spare as well. Bought a '18 Mustang GT...all it has is a "tire mobility kit". Took it on a 3k mi trip to Yellowstone this summer and running across South Dakota and Wyoming at 85 mph in 90+F heat makes ya think about stuff like that. We had a close call(something in the road) in Yellowstone Park but managed to avoid it. If I need a tow..AAA has me covered for 100mi and a pair of tires might cost $400-$500?.....a bit more than the spare kit you listed. The spare will get ya off the road but you'll still have to fix/replace the tire. Cost wise might be a wash but ya gotta do what makes ya comfortable. For now I'll just wing it with the Mustang until we figure out how many big trips we'll take it on.

Here's to you never needing your spare and me never needing to contact AAA from the boonies!! LOL!!