You’ll like the Case, it’s a very sturdy enclosure, and the unit is well packed in dense foam. I’m not 100% sure about this but I seem to remember reading somewhere that 100M Tether is a back-ordered item, which might be holding up your order. But given your location I can certainly understand why you’d want the longer Tether. Our water is fairly shallow herein the Pamlico Sound, so the 25M Tender worked fine for my general location.
I am located 60-75 miles north of where Florence came ashore. My area received some some wind and flooding from Florence, but it wasn’t too bad here in north eastern North Carolina. Winds gusted here to about 65mph (105khp), and the storm surge created flood waters covering our property to a depth of about 18 inches (45cm), but the flood water receded completely after about 6 hours. Our home’s foundation is raised so no damage or flooding occurred. The only downside for us was all the debris that floated onto our property; sections of broken piers, gas cans, tree branches, and even a couple of small boats floated onto our property. It took me a week to clean up all the debris.
Cities to the south of my location, such as the New Bern, North Carolina area weren’t so lucky. Many homes and businesses there sustained major damage.
Hurricane Michael was pretty much a non-event for our location. Just some wind gusts to 40mph and a minor water level rise.