Antenna mast:

https://www.amazon.com/MTC-86337-60151-Antenna-1998-2007-9099/dp/B00BDVM8P0

Its a pretty simple install, lots of videos out there. I would personally replace it with a short static one and never worry about it again.

Wind deflectors:

https://www.weathertech.com/toyota/2003/land-cruiser/side-window-deflectors/