The master guardiancraft quest does not improve your crafting ability at all. It is merely a reward for reaching level 4 of your craft.
After a certain level, the recipes are not available from NPCs. You need to get them from mobs or from other players in TR. If you're looking for mobs to drop them, farm the mobs in the adventure instances or in overworld dungeons. Of course, this may not be possible if you've already outleveled the dungeon that drops the appropriate recipies.
If you're looking for [60] craft recipes, I think it'd be River Temple 1 and/or River Temple 2. Check
http://esodb.ru/ for guidelines on specific recipes.
(PS - maybe start a new topic next time?)