This is something that someone can't really answer to satisfy your need. I mean I could tell you that the fretless I use, like the Carvin is a fully made-to-order company with a money back guaratee that you should be able to keep under you budget of 1200. And then the ESP fretlesses I use are not expensive, even the custom made ones. But I mean how am I supposed to know that you'll feel comforatble on either of these? How did you pick out the bass you already have? You should use the same logic when you want to find a fretless, it's just a bass afterall. What is right for some players might not be right for you. I know that's a pretty vague way to steer you in, but the best I can say is to just try out different models and you'll know when you find something you can live with.
Or, take someone else's recommondations and hope it's the right choice.
SDG