if you are going on the cheap, look up rock climbing harness for safety and a fleece saddle for comfort. the rope, i got at ouachita outdoors outfitters at hot springs for about 80 bucks... that included 2 carabiners and a figure 8. after that, just need a climbing system. before the climbing system, you are looking at about 6-7 pounds for this style setup, and fits in a normal size backpack.
Smackover $450 2019 custom Aero hunter Kyte saddle with web style adjustable bridge, quick disconnect buckles. Size one. 2019 Lone Wolf hand climber with pad. Hunter Safety System rope style tree strap with SOB rope ascender and carabiner.