Once I had a better idea of how to go about it, I have put together another little slideshow of the excavator at work.
This time I figured out how to crop the images to fill the frame before putting my 53 images into a slideshow with each image displaying for 1 second, 1 second being the default timing from my software.
So, I have a bit of a fake timelapse. I say fake because a 54 second timelapse should have abut 1000 images or even more for smooth transitions.
My camera doesn't do timelapses natively, but Lightroom helps to give me that effect, at least a little bit.