ZBrush Modeling

Hi, I have a 3Ds Max file with the model of a membrane attached (current ceiling.jpg), I need some adjustments to match the new design, it is an organic shape so I need a person who can model it very accurately with all wrinkles and details, I don't need materials or anything else I just need the 3D Model. The other photos show how this membrane should look

I would prefer someone who works with z brush and 3ds max. Send some samples of your work.

I need this ready tomorrow, in 15 hours from now.

Thanks