Build a work-scope table
List the work date, component, provider, description and supporting document. Include only work you can substantiate. If a previous owner described the unit as refurbished but supplied no records, attribute that statement and disclose the gap rather than adopting it as your own verified claim.
Separate different kinds of work
Record cleaning or repainting separately from repairs, replacement parts and testing. Describe each using the source document’s wording. A fresh enclosure finish does not establish the condition of the engine or alternator, and a replacement component does not document work on the rest of the assembly.
Keep findings and exceptions visible
Attach reports describing unresolved issues or recommended follow-up. If an invoice excludes certain work, preserve that limitation in the summary. Identify parts described as used, rebuilt or new according to their documentation. Avoid compressing a mixed work history into an unsupported like-new description.
Show what happened afterward
Include the dates and scope of any later assessment, service or operating record. Explain subsequent storage, movement or damage that is known. Buyers should be able to distinguish the condition documented immediately after the work from the information available now. Retain a concise timeline rather than promising that an older refurbishment guarantees present performance.