You could post/move your thread to the Services Section since you are paying Bitcoin with an additional token. I saw a signature campaign thread paid with bitcoin including some additional token on there, so I believe it is acceptable.

Make sure you already consider to see the compilated thread about the recommended manager (https://bitcointalk.org/index.php?topic=5032713.0). I'd recommend it a lot to use a reputable and credibility manager since it will give a significant boost to your project.