The cool thing about those old antennas is they will pick up DTV programming no problem. I use a fringe region antenna still as well.
Personally I would make use of a ChannelMaster or equivalent Active amplifier that mounts up at the antenna, converts to coax and inside the house the coax passes through the power injector. If you just want to convert from 300 ohm to 75 almost any of the countless variations of 300 to 75 ohm baluns will work but as to where you can find one the last time I bought one it was the 2000's and RadioShack still stocked antenna parts.
I can't help you with the Rotor, unfortunately.
For lightning there's not a lot you can do. Lightning arrestors and spark gaps are countermeasures but at the end of the day my grandparents had one sure way to protect the TV and radios when a storm rolled through: Unplug the antenna.
Way back in ye old day their place was struck by lightning twice. The first time it hit the antenna and that was the end of that TV. In the 80's it happened again but instead it hit the lightning rod on the roof, jumped from the insulated ground line to the eaves and then the aluminum mast mounted to the side of the house and again killed the TV, a radio and a VCR.