Re: [NickCliche] Safe Heights for Tracking
Good on you for attempting to obtain knowledge, and yes, continue looking for a mentor. What area are you looking for. Just because there aren't people on basejumper, doesn't mean there aren't basejumpers in your area.
As for your initial question, you just asked about two of the most technically demanding aspects of base jumping. 1. Subterminal tracking, and 2. Slider down freefallable guy wired antennaes.
Your ability to start tracking and make significant distance from the object depends on a lot of factors. Actual height of the object, poised vs running exit, slick vs two piece track suit vs onesie, perceived ability to track, and even actual ability to track. In addition to these, for your specific objects, you need to ask yourself, how long will I actually be in freefall for, and will that time be enough to start significant movement away from my object (hint, from 500 ft, about 3-4 seconds, and no).
The second aspect of this would be freefalling a low guy wired antennae, which is quite possibly the most technical type of jump in all of base jumping. I would bet there are at least 10x the number of people doing 5 second wingsuit exits regularly than freefalling low guy wired antennaes regularly. Wind direction, number of wires, distance wires extend out from the tower, the list goes on. Off headings on slider down guy wire towers get can get spicy in a hurry. I have probably a dozen different towers I jumped earlier in my base career that fit this criteria. The last one I jumped was about 5 years ago, 240 ft hand held. Had a 90 left and actually flew between the tower and the wire before I even had a chance to correct my off heading. Unscathed by complete luck, and made the decision not to jump low guy wired towers any more after that.
The overall answer to your question would be, hold off on jumping these type of towers until you have a bit more experience and someone to help analyze and walk you through getting ready to do this kind of jump. Good luck and take your time!