Unit 27 was my first backpacking hunt last year and solo. I did the inreach and it worked great to keep in contact with the family. The website GPS sharing worked great, but I do want to point out they just suffered a ransomware attack that put them out of service for a little. Definitely...
+1 on the Arizona mule deer. Just be sure to be on the binoculars at sunrise and sunset. For something different on the east coast maybe a Maryland Sika deer? You can also do some pretty cool backpacking hunts on national forest on the east coast.