For a 1954 airframe the maintenance schedule is unlikely to be the 'original'. Or at least it should not be! You are of course also neglecting the engine - which with a date like that will probably have oil replacement at 25 to 30 hours and many of the other requirements at much more frequent intervals than we would use today.
In cases like this there is some justification in there being costs associated with a type specific maintenance program. That is because it will start with the originals and then can be modified as a result of 50 odd years of experience of running the type. The diffficulty is that very few 'maintenance organisations' have any idea on how to compile a justifable program - because all they have every done is lean on LAMS, LAMP etc and added ADs on the top.
But there are resources available and I suspect the US owners club is probably a very good source of information in your case.
Of course it does make something of a nonsense of the whole Part M approach - because if you ask the type approval holder for a type specific maintenance program they will tell you they no longer support that type......