Its probably best to stick with the little table I worked out for their important skills, and focus more on their appearance, demeanor, quirks, and relationships WITHIN the community. Those are much more important than skill rolls. A sample NPC should be more writing than numbers, IMHO.
But coming back to the numbers: I just took some arbitrary values, but they are fairly realistic in terms of stats and how a typical NPC in a specialized craft economy would develop. The numbers in the table tell us that a 5th lvl craftsman can make his normal products (medium difficulty +0) without much chance of failure: the +74 bonus, applied to the static maneuver table, gives almost no chance of failure, unless he rolls open ended low.
More difficult products will prove more difficult. A black smith repairing a full plate will have a really big chance of failure (full plate being a -40 maneuver and the black smith is dabbling in armoring (another -20)). Then again the smith has no knowledge of the special hardening and annealing techniques used to make a gothic full plate, much less the facilities to accommodate the larger sections in his forge, even less the right tools and anvils for the job.
This said: don't pay too much attention to the numbers, just play!
As a little tip:
usually I have like a spokes person for the villagers: the Elders, a mayor or some wise woman.
Then there needs to be an entertainment guy: such as inn keeper, the brewer, or the village chef.
Then you'd need some appropriate craftmen: smith, leatherworker, carpenter, mason, etc.
Then there's the fluf of every village: annoying children, market stalls with food items, pretty and or ugly wifes/ available women.
The larger the village, the more numerous the important people. I find it easier to come up with the craftsmen involved if I knew the subsistence pattern of the village. Goat herder villages need no smith, but a sheepshearer, and a spinnery would be the right crafters. Smiths tend to work for farmers, who need plows and horse shoes and woodland villages, to cut trees and timber. Etc.
Main subsistence Crafters
Herding Shearer, spinner, wood works
Traditional farming (food) Blacksmith, brewery, bakery, mill, wood works
Orchards Blacksmith, winery, confectioner, wood works
Husbandry Cheese maker, black smith, wood works, butcher,
Hunter gatherer Stone worker, basket weaver, potterer (these are older crafts)
Lumber/ forestry Winery, wood worker, basket weaver, fowler, butcher
spec. farmer(silk, cotton) Spinner, weaver, dyer
Plenty of crafts were done at home by the way. In the middle ages your wife would be harvesting willow toes to weave into the coming year's baskets. She would buy wool and yarn to knit and sew next year's clothes and she would gather clay to throw new cooking pots when needed.