expert in merch by amazon. T shirt designer and SEO expert (title and keywords)

good morning

I need a designer to upload shirts in merch by amazon. I also need to be an expert in SEO (title and keywords) to get a good position within the platform merch by amazon. Be very careful with copyright rights and that the designs are not copied or the continents phrases in it. that is, an expert designer of t-shirts in merch by amazon.
I will pay 2.5 dollars for each design with its title and keywords to get a good position. right now I will need around 100 shirts, but if there are sales, I will increase the limits and pay more money for each design if a good achievement of goals and sales is ---------- the event that the limits are increased considerably, there is also the possibility that it will be responsible for maintaining the account and I will also pay more for it in order to have a long-term relationship.
I will need proof of your work before hiring.

If you are interested contact me urgently because I need it to start as soon as possible.

Thank you