To be honest with you, if you actually get all the crafts to 50 and thus have all the skills, you will be able to pretty much 100% HQ everything so long as you're wearing HQ class gear on the left side, have your HQ militia offhand, and have level 49+ HQ accessories. No melds necessary. You might have some trouble with the base materials (the 40 durability ones) but all the finished products shouldn't be an issue.

At which point it's up to you. There are definitely pieces of furniture you can make big money off of (especially if nobody's made any in a while). You can make the AF gear for the classes and sell them to others for usually around 20-30k each (that's the prices on my server), or you can find out what food items sell, where to get the ingrediants, and start producing those as well.

Also Glamour Prisms.