January 26, 2015, 10:55:15 pm
I think yes, complex to price it correctly. As far as getting paid goes, it is easy.
In this situation you contract out your time week by week. If the customer doesn't like the product after the first week the contract is over. You send your first invoice out after a weeks work, make the models and images available via private cloud. The net amount for the week is paid in full immediately.
If both parties are happy then another week begins.