Hello, This is my first post here (other than the mandatory 'hello'!) A bit of background first: I'm currently working on a project in my spare time (I work as a developer for a major Australian TV manufacturer - writing a variety of types of software from database tools for our logistics etc to android apps for our smart…
The first 5 paragraphs don't really matter at all for your question, and are throwing everybody off from reading the whole thing. Nobody knows how long it will take you, only you can answer that tbh. It's a bit silly to go ask other people. The better you want them to look, the longer it will take. Might take extra long…
Biggest problem with your post is that it's a massive wall of text, with no images, we're artists here after all! Post some images of the sort of art you're talking about, its hard to answer any of your questions without knowing the complexity/quality of the art required.
Two weeks is a pretty reasonable lower bound for most vehicles. A 500-triangle spaceship might take a little less. Of course the longer someone has and the more you pay them the better the end result will be.
Im not asking how long it will take me. I waa after ballpark estimates on (a contractor) modeling spaceships with 500-1000 polygons in terms of whether im lookibg at hours days or weeks .. anyway ..I'll have some specifics a little later...
Definitely days, up to a week maximum to polish everything (since they're hero assets), including the concept stage. I think coming up with a good and clear concept is the hard part, if you have those you can significantly cut time for the 3D modeling part.
It at least has paragraphs, correct grammar and spelling? (Although I know not everyone speaks English.) Ok. Maybe in the morning I'll post a shorter version.