Go by the book as recommended.
If I had no book, I'd go with light break in oil, non detergent.
run it and play with it checking things over, adjusting linkages, alignment etc. You have a new toy and you want to play with it a little.
If it is really cold in the shop, you can put a 100W light bulb under the engine for a couple of hours before you start, just to make you feel better.
