Read and study, understand - This is how I would have done it, if I would have to do it all over again -
80 Durability 100% HQ using all NQ materials.
With the above in mind, obtain the skills necessary for your current level crafts so you can HQ reliably -

Apply what you have, and do the leves from this list:
Leveling-craftingtradecrafts-with-repeatable-leves-guide

Since you are cross-class lvl'g, it will help you with obtaining HQ using NQ items, which helps with those leve turn ins.

jc