Develop a Mac ScreenSaver package

We have a number of uplifting images with words of wisdom from a meditation teacher. We need a software to package them into a Screen Saver on Mac for distribution and download. Basic requirements: - Images only - To package images into a Screen Saver for distribution. On the Screen Saver, images will be rotated from one to another after pausing for a time interval - Re-usable: can be used to package another Screen Saver when we have more images to add to the mix. - Screen Saver should allow following customization on the client's machine: - to specify how long each image should stay on the screen before moving to the next image (default: 5 seconds). - to rotate images in sequential or random order (default: sequential) - to specify if the images should fill the screen, scaled to fit the screen or keep the original perspective