>Found these on eBay:
>1) Microsoft Visual FoxPro 9.0 Professional upgrade version + previous version to create a full retail version - https://tinyurl.com/y3padozs
>2) Visual FoxPro 9 ® software disk (academic version) with working serial key and in original CD case - https://tinyurl.com/y5x52ops

You can also buy new (downloadable ISO) copies of VFP9 through an MSDN subscription, along with new copies of MS-DOS, Windows, Visual Studio versions, all kinds of stuff, all for the one-time one-year subscription price.

You'll receive license keys that let you use those tools for development in perpetuity even after your MSDN subscription expires.