That looks like pretty good cable for your application; the only remark I have is that if you have any parts of it with direct exposure to sunlight/UV that there might be an issue down the road, as it was stated in the Q & A's that the jacket was not UV-rated. IMO, since the jacket is PE, I doubt there'd be an issue with UV at all if it's not directly exposed, as under a roof eave or tucked under siding, etc. They went on to state they have similar cable that IS rated for UV, product #15397 for a few more dollars.
All that being said, I think a bigger issue in FL, called by many as "The Lightning Capital of North America", is the threat of ESD damage from lightning by placing any CAT in the ground for 75 feet between buildings, even shielded cable and installed. surge protection.
If you have line of sight, I'd consider a pair of Ubiquiti radios, set up as a
Layer 2 Transparent Bridge . If you don't feel up to the relatively simple challenge of setting them up, a
pre-configured pair can be had for less than that spool of cable !
At your distance, just mount them plumb, point them visually toward each other and turn the power down probably 50%. Lots of support here and on the UBNT (Ubiquiti) forum. I'm a big fan of wired over wireless but being in your neighboring state of AL I have replaced LOTS of devices damaged by nearby lighting strikes and CAT cable was the receiving 'antenna.' Good, dependable wireless devices such as from UBNT does have its practical place here.
