Hudson, feeling his dignity insulted, decisively rejected the man in violet. Money can be made at any time, but dignity couldn't be regained...
You get what you pay for.
Three hundred thousand gold coins, all spent on purchasing poor quality weapons, would amount to an excessively large quantity.
Once it leaks out, tracing the source of the weapon production will be as easy as eating and drinking.
There is no law in Alpha Kingdom that prohibits the sale of weapons. Yet reason tells Hudson, it is better to remain inconspicuous when necessary.
If these guys, with these weapons, cause a significant incident, and the Kingdom investigates and finds them to be from the Mountain Domain, the higher-ups might not reason things out calmly.
"Baron Hudson, don't reject this proposal hastily. Since ancient times, one can't expect to make huge profits without taking risks.