Ok, yes. Still the pictures are only half of the target. Youd still need to think about all kinds of stuffs suach as how wxatly you want those creases to interact and how to get that just right c3 continuity. And be prepared for some iterations since those need to be tough out as thay are VERY important and your picture doesn't really show other than just the concept form
So be prepared for atleast 1-2 weeks of changes also on the datails above other things. Id say your going to be looking for a months or so in time (accounting for all detail approval). At about 500-2000$ a day. Because thets a good going rate for a frealaners days work versus their risk.
So about 15000-25000$ and a month or faster too but price being a bit higher the fatser you need it back.
TRY: to aim for a fixed price but with somewath flexible delivery. Also make a very carefuyll contract on how any changes you may need get to cost, and especially what counts as changes, how finished is measured etc... otherise theyll just match your projections in way that doent necceserly look good. (you can not know hat shape can actually be made to work right in 3d.)