If you are not dead set on the Aptus 75, there is a phenomenal promotion on the Aptus 65 through the end of July. You can buy the Aptus 65 (not 65s) for $13,995.00 USD.
In addition, I have a like-new demo 75s available. I could look at factoring in the cost of a mount swap, and keeping the price within your budget.
Feel free to contact me with questions.
I am looking for a Contax mount Leaf Aptus 75 new or in mint condition.