What the record may contain
Project documentation, change histories, specifications and operational methods. These are examples to discuss, not confirmation of buyer demand or permission to share.
The question to resolve first
Check ownership of designs, client restrictions and obligations to project companies.
Prepare for a useful conversation
List the systems, time periods and kinds of decisions represented in your records. Describe the business context without uploading files. Ask a company to explain its current interests and exclusions before granting access.