Freelance Machinist

I am looking for a freelance machinist with their own sewing machine and over locker to make mainly cushions.

The cushions are would need a hidden zip sewn in and the quality needs to be perfection every time with labels in the same place for each cushion. I will provide a sample on how i want them done.

The work would come in as orders do and jobs would usually be given a minimum of 2 weeks to be completed (for example 20 cushions)
Different size cushions will be required.

I will provide the fabric and anything else required to make the cushions, including the hidden zips.

I am looking to build a business relationship with this person for many years to come, as I grow my business. I don't really want to go to a big manufacturer as I really want to work with an individual and provide constant work to them.
I would pay a reasonable price for great quality and good work. It would also be dependent on quantity produced.

Open to reasonable offers.