The rating of that battery is apparently 30C which means the peak current it can source is its rated capacity in AH multiplied by 30. That’s in the vicinity of 250 amperes, enough to start a small engine, and capable of melting almost any wires that might stray across your binding posts. For this reason I would not use binding posts, they are too easily reached by bits of wire, especially in the dark, when working in a hurry, or when someone else connects their rig to your battery. Anderson powerpoles (or the larger, higher rated series) have the advantage that the terminals containing all that potentially destructive energy are well concealed and you cannot drop wires across them accidentally to cause trouble.
Powerpoles are best crimped, not soldered. You can purchase the relevant jaws (rather than the tool offered by Powerwerx as one example) and attach them to a generic tool.
When fitting any connectors, do one at a time, leaving the old connector on the red while you reterminate the black, or vice versa. An extension for the balance lead can be purchased from Hobby King.