We fixed the effort to 3 days of development with the goal to be included in 7.0 series.
So for B2CK this means a budget of 2000€ (without VAT).
The budget will be divided in equal parts between the contributors.
Contributors may add an upper limit to their contribution in case there are not enough contributors. For that they will just need to post a message with their limit (so others may anticipate their costs).