Exiledadmiral
Thanks for the comments.
Depends on how much time you got to sculpt.
Your experience with Greenstuff and sculpting in general.
And also with greenstuff its a case of doing a bit, letting it dry and doing some more.
I have found Greenstuff unforgiving with mistakes so taking your time is key in my opion.
But to cut a long story short about a good day or two depending on the above and the leval of detail required.
Alan