Hi,
I'm keen to take this on. I'm a digital artist from the UK, and have done lots of these types of projects here on Freelancer with perfect feedback.
I never use auto-trace to create my vector drawings, always smooth, hand drawn curves and very accurate results.
I can get this work done in around 24 hours. I will point out however that your example Photoshop file would not load for some reason, so I would need to see the file just to double check the difficult parts like gradients, complexity of the work etc.
Drop me a message if you wish to discuss further. Would be great to work with you on this.
Thanks,
Colin