I think it's overkill to buy the tools for 1 cable.
Measure 5 times and order a pre-built length. Allow for the full distance the cable has to go between devices and add 10 feet.
Quick search on Amazon shows this 50 foot CAT6 for $14
https://www.amazon.com/Mediabridge-E...s%2C495&sr=8-4
Vents - I had to snip the metal on the vent grill to get the connector through
Floors - as mentioned by others you punch a hole, run a cable then have fun patching the hole, drywall, paint, the weeping of the women folk over the destruction of their beloved dwelling.
+1 for the long cleaning rod. Use electrical tape to tape the CAT5 to the cleaning rod. Cover up the pins on the end of the CAT5 with tape to prevent damage.