Photoshop script for batch job

We have about 3,800 black and white drawings and we need someone to create a batch job with our images and convert them to 15 different backgrounds. For example. A black line drawing with a white background would be made into a black background with white drawing, or another example is a blueprint. The final outputs will be added to our dropbox folder so that we can print up to 24x36. We will provide all the high resolution images for you to run the batch jobs. We can show you examples of what the 15 different images look like. Some rules: 1. blank bids that say nothing will be deleted. 2. Copy paste bids will also be deleted. 3. If you ask us what our budget is or provide a low ball quote and then raise the price later, we will eliminate you. your bid is not a place holder. its a bid. 4. Start your bid with "instructions read".