Hey There,
I read your detail and I agree with your all points. But need to check your old site first.
I am ready to work. I will give you similar design as per your old site with 100 products.
Please show your site. I have good exp. with WordPress. I will give you a mobile version, seo oriented site.
You will be able to manage by your self. And if you will need I will be able to give you SEO Services as well.
Looking forward your reply.
Regards,
Ram