Citation 7.1 Amp how to replace binding post

Bought a Citation 7.1 for a good price, but in shipping one of the binding posts broke off. The seller blames UPS, UPS blames the seller's packing.

I'm hoping I can cut my losses, and replace the binding post with the help of Parts Express. I've opened up the hood of the Citation 7.1. The binding post itself has a nut on the back, that appears to be soldered to the board. Backed out the nut, with a little torque to crack the solder.

It appears the wire to that binding post is a crimped easy female connection...but that connects right to the board.

If I replaced the binding post....does that wire on the circuit board somehow connect to the metal hole around the binding post on the board....I just have to tighten that nut and I'm good? Or do I disconnect that wire from the board and hook it up direct to the binding post?

Wondering if anyone has any advice. While I can field strip a computer, solder scares me. But, I'm surprised how much this amp looks like a computer....power supply...4 boards representing the 4 channels...and a back plate....

Ideas? I've bought a few different styles binding posts from PE....hoping to find one that's "plug & play".