How to get back in the saddle again?

I am a 59 year old male who took a couple of TCI courses from Abe about 14 years ago. Are there any devices or gear that might get this out of shape old man back up in the trees he loves so much. I am talking about something like a mechanical advantage kit, tree wrench, or tree runner (when available) or anything else you might know of ? Any help will be greatly appreciated. BTW this is my first post here.

Thanks,
Squirrell

Hand jummar, croll and pantin. Get yourself a static rope and set it in the tree on a suitable anchor. Timber hitch it to the stem and ascend into the canopy using this SRT system. When in the canopy change over to a drt.