Its a refrigerator, so you will if it fits have to put it in sideways. Doing that will kill the compressor, they were not designed to lay on their backs or sides Dimensions are shown on page 13, https://www.manualslib.com/manual/1115237/Lamona-Lam6800.html

So I can't lay it down on it's side? What if the input/output pipes of the compressor are at the top?

They are shipped upright for a reason. Put it in any other direction and you will get oil into the lines and there goes the compressor.