Jobs & Experts: Approval process before posting experts

Jobs & Experts Plugin + Protected Content for monitization

1) When an expert creates a profile, can it be kept unpublished on hold until admin checks the profile and vets qualifications etc?

2) How (which other plugins etc) can I make experts pay to create and keep their expert profile on the site?

3) I would like to have experts have a basic profile for free and a more detailed profile with links etc as a monthly premium subscription. How would you do this?

4) Is there an embedded payment system where users pay experts directly on the site?

4b) Is there a system in place where a percentage of each project's cost/price goes to Admin (site owner). How do you recommend doing this?

Thanks in advance!