The rewards...

I've noticed several of the rewards (mainly weapons) have different stats compared to their base...did anyone get a dowra yet?

I think you get grade B or so. If you notice, everything from Magic Craft and Engineering have different stats from different sources. (Like one NPC sells a blasted oak wand with 18 dur, another with 21 dur, but the base dur is really 10.) This is because, although the base is 10, different quality gives different stats.

So the differences between grades are a lot bigger with these than the other production skills?

Do any foreign wiki's have grade charts for magic craft and engineering?

From what I understand, it's not that every item follows the same quality rules. For example, different guns have a different min/max amount of damage they can receive randomly.

Using "futuristic technologies," I found there really isn't a way to find it and is randomized...not sure if the event ones are fixed soo yeah...if anyone else gets another zeder II and/or hermit staff, please fix accordingly.

Actually, you can find the bonuses in the items themselves. I already wrote up a snippet for the weapon/equip templates to display the possible random bonus ranges, but I haven't implemented it yet.

yeah I found that after snooping some more...excuse me while I go salvage my things in the mess of emerald golems.

Unlike production, bonuses are not dependent on quality. They are all randomized.