Found One!
It was not the best solution but hiring a blacksmith for a whole month, a small workshop with a smithy and enough workspace to engrave runic constellations and to store runic solutions properly, followed by all necessary materials was a lot cheaper than creating a temporary group with a blacksmith and an Alchemist.
The blacksmith he hired was not as good as Beran, otherwise, he would belong to the Forging Association, but he was still much better than Nial.
As for the runic solutions Nial bought, most of them were rather common, and there were only a few unique runic constellations he would require for special runic constellations.
Nial accepted a total of 30 C-rank Runicier Missions. Most of them were about the creation of a single customized runic weapon, which made things very easy for Nial.