For help with the crafting part get an at will item of Unseen Crafter as soon as you can. Without reducers its 10800 gp, but it pays for itself almost immediately. You use one casting to set the crafter to work on whatever you need, then cast as many additional uses so you can up the DC by intervals of 10 to reduce the craft time. These additional crafters only have to hit a DC 10 to aid another for the duration to give stacking +2s to the check.
Once you have enough GP upgrade it to add an at will item of Fabricate. Remember its only a 3rd level spell if you pull it from the Trapsmith's spell list. 27000 gp for 5 cubic ft at a time. That way you can make small items instantly but big projects, like a ship for instance, you can set your army of crafters on it to make things larger than the Cubic Ft limit of Fabricate.