How many of your domains are already developed?
1 fully developed, working on the 2nd and 3rd one, almost done (2 cancelled in the past). That will be 3 out of 20 altough a few domain are forwarded that perhaps will be developed too.
How many of them do you want to Develop?
As much as i can and feel necessay. I would buy new domains.
How many would you like to build into "mini sites"?
As much as necessary
What would you pay per site for large scale development?
Current marketprice, altough I am not familiar with those and don't consider it at this moment.
cheers