The first Heresy book Betrayal contains the complete Crusade army list. You can build a pre heresy legion just from the first book. It also contains additional rules for specific legions, in this case the Sons of Horus, Emperors Children, Death Guard and World Eaters.
Given it's the first book with the crusade era army list and that the chaotic rot hasn't yet set in the Sons of Horus list would be perfect to represent a Luna Wolves force.
If you don't want to use forgeworld books then the 6th edition Codex Space Marines would be perfectly fine to use. You might want to avoid some post heresy equipment like razorbacks and such though. As for doctrines use the Ultramarine's as it represents the Luna Wolves considering themselves the best legion.
In terms of list composition the Luna Wolves favored spearhead attacks involving orbital assaults and had a large contingent of terminators. They liked to close in with their enemy and use wolf pack tactics.