Run Big Rob's Hauling in Davenport against the list. Rob quotes from a text photo before anyone drives out: From $125 for a single item, $225 for a quarter trailer, $350 for a half, $525 for three-quarters, $700 for a full. Stairs, heavy pieces and drive time are inside those numbers. If the pile turns out smaller than you described, you pay the smaller size. The business is insured. Payment is cash, check or card when the work is done, and there's no deposit.
Disposal is named, not hand-waved: most loads go to the county transfer station, fridges and freezers go to a scrap yard that recovers the refrigerant, and usable items get set aside case by case for Goodwill or the Salvation Army. The Google profile shows 5.0 stars across 119 reviews. The three below are the ones that speak to the quote and the price holding.
One job-site data point, paraphrased: a homeowner holding two far higher quotes chose Rob anyway, and said afterward the manner decided it: straight answers, no push.