80 watt soldering iron from Antax the 35 watt is decent but the extra heat from the big one does itt in seconds cool it off and be done.
After mounting the connector outside i use selfamalgamating tape and never look back.
I use that stuff since 37 years and removed it from connectors that had been out here in heat cold snow salty conditions for 20+ years and kept the connectors dry and as new.

Wind it after stretching with 50% overlap ober connector and the connector the plug goes in.
Stretch it doing so, the last 1 or 2 inch don't stretch just stick it to the underlayr that prevents the end from getting loose and start flapping in the wind ( don't ask how i found that out) ;)
Cables used here are the Exoflex 15 very low loss coax 15 mm outside diameter and € 5.50 a meter.... i have 80 meters up in 3 lines.
That is $ 550.00 in dolars the N connectors are 12 Euro a piece....