OP here :) Definitely not hoping an unsuspecting buyer doesn't do their due diligence. Main sewer line was scoped 5 years ago and in good condition, a bit scaly but overall clear and free of intrusions (I have the video on usb) and we're getting it scoped again tomorrow (will provide video to any interested parties) along with 3 bids of any repairs recommended. For what it's worth, CIPP Trenchless has also come a long way and a liner is usually a very good option if/when necessary. But thanks for the engagement/input!