Re: Ryonopolis
This looks way too ambitious for a one man project, it's good if you plan to finish it in a year or two, any other way it's just too much.
I have to say that it's pretty hard for you to come by a 3D modeler willing to cooperate with this, making good looking female models is a rare skill (that's why you see so much monsters on 3D sites) and the chances of finding a person with that skill and also is willing to pour time in a project like this are pretty dim.
Modeling is hard, a decent model can take a seasoned pro a few days to complete, your best bet I think it's to use poser models, take them to zbrush to match your needs (and make them stop looking like generic poser models for once), simplify their topology so they can be used in a realtime application (topogun or retopo will help you there) and then you are good to go.
Anyway, good luck, just make sure you don't put in your mouth more than you can chew, we already have way too many abandoned projects due to urealistic expectations.