to make money with artifice, try and sell augmented lightsabers, on average you can get around 200k per saber.
and with synthweaving i guess augmented war hero armour would work nicely, not sure how much it sells for exactly but its pretty high,
also selling the materials from treasure hunting and diplomacy that are artifact grade (purple) can be fairly profitable, i cant speak for Giradda the hutt server but on my server they sell pretty quickly