DieselPower: This is not a valid topic for dealer bashing. Dealers pay most of the retail cost for manuals including EVERY manual and revision for EVERY machine they have a sales contract for whether they will ever sell that particular model or not. Manuals are supplied to dealers by 'subscription' and are non-returnable. Assuming dealers set the retail price for service publications shows a decided lack of understanding of the facts. Many dealers actively attempt to get customers to deal directly with NH for service publications; including the one I used to work for.
Andy, you may decide to forego the parts catalog now that NH parts catalogs are available online. Also, last time I checked, service manuals were still available by section. Electrical, Transmission (for Power Shuttle owners) and Cab will give you 85% of what most mechanically inclined owners will ever need. Would you undertake to change front axle seals if needed for example, or would you hire it done? Do you really expect to need service info on the engine? I should hope not. Just some thoughts, your mileage may vary. If you find a set on Ebay or from another similar source, be SURE you are buying a manual that applies to YOUR configuration of TN. A manual for a TNS/D has significantly different info in areas you are likely to need than a manual for a standard TN.