And the neigbors are really going to like the smelter.
This is like asking I need someone to help me manufacture 17th century japanees swards. I am sure a talented person could do it over a Hibachi.
I know the theory of harisprings.
I have John Harrison's notes to the board of longitude. So know that harsprings were wound 3 at a time to get the space between the coils.
Hairsprings and balances need to be made in tandom.
This is not to say for my own entertainment value that I have not considered some sort of AI robot method. that could fix or untangle bent springs.
There used to be people who did this for a living 10 hours a day 6 days a week. Perhaps such still do exist. I have a Val-72 which needs a hairspring. I started to play with the old books and videos. I then found one online at a great price, But I need to vibrate it and set the breguet overcoil.
So far I have not heard of anyone that can do such work. But I ask the local watchmakers anyway when I visit.
I even asked my glasblower friend it he could make a glass spring.
If you find someone let me know. This could be an area of oportunity for advancement.