3d rendering - emergency - 48hr turnaround URGENT

Project Description:
We have 4 internal commercial office views requiring to be slightly modified and rendered in v-ray within the next 48 hours.
Final renders will be required at very high quality and 5000 pixels wide.
They will need reviews - probably 2 to be presented at 2000 wide.
We need a reliable provider who can prove they have worked on large building renders and regularly produced outstanding results.
This is a real project and a premium will be paid if someone can provide the services.
I would estimate the model, lighting and texturing is at 90% for each of the 4 images.
50/50 payments.

Thanks.