02-05 Civic exhaust manifold/O2 sensors

Bought to replace a cracked manifold. come to find out the motor has a knock. Listing for a buddy so I’ll post more details as I can

Spent 1000$ or something at the dealership for everything OEM, the manifold, both 02 sensors, and heat shields (not sure if theres anything else but I’m sure nuts/bolts/related hardware is included. Alls you need is a few bucks in gaskets.

Make offers. I know he doesn’t want to take a HUGE loss but since the dealership wont take back the parts he has to sell them either way.

The car is also available it’s an 02 civic 4dr with 180k, was in an accident front end damage to the passenger side/very front of the passenger front door. Motor has a knock. Also looking for best offer on that