I recall the only thing that the engine came with was some parts lists written in Indian.
That in likely the reprint of the English 'operator's manual' that came with the original Lister engines. There is a certain amount of Listeriodism not given to written instructions, but the basics are in the book and many of the details on the CD.
If you have tapered roller bearings you don't need an oil pump but you do need a dipper. A simple catch screen with a washcloth under it is a 'filter'. If it doesn't have an oil drain hole (some didn't) either make one or dip, siphon, pump, or sop out the old oil.
By the nature of the beast it is NOT entirely correct as a long lasting engine. George's CD and numerous other references tell what to look for and how to correct them.
The average Listeroid maker is probably better suited to digging ditches but he'd probably get confused between deep and wide.....It is important to know the difference between 'normal' and 'mistake' on a Lister. There are plenty of examples of each in a 'normal' engine (bought out of the back of a nearly smugglin' truck.)