Make me an offer

I (after many years) am still trying (unsuccessfully) to create a turn based game similar to CIV or Birth of the Federation. So can any coders here give me a rough price on a working demo (which i can expand upon)? This is a turn based game i am after, 3d playing field with combat in full 3d. Thoughts?

Sourcecode for a working "demo" of a turn based game similar to CIV?
~$250.000 (with complex strategic AI ~$400.000)

I'd offer you my 3d chess code without AI for ~$50