- Identity evidence
- Verified brand or maker, product type, model, size, material, part number, variation, and included pieces when applicable.
- Condition evidence
- Objective notes and photos for wear, flaws, damage, missing items, packaging, and tested functions.
- Market evidence
- Relevant completed sales plus the dates, condition, completeness, shipping treatment, and platform context available to you.
- Full cost
- Purchase and preparation costs together with expected fees, packaging, shipping, returns, and the profit buffer you require.
- Operational fit
- Space, handling time, listing effort, safety, restrictions, and a practical way to retrieve and ship the item.