Hi Pooja,
I can develop a website for your home clothing and jewelry business, it will be a complete E commerce solution with user friendly so your client can easily manage that. It will be a complete mobile responsive as well so your website can be accessible through mobiles phones as well.
Answers of your question as follow:
1.15-20 days.
2. 222.22$
3. for maintenance we charges $100 a month which give you 10 development hours a month where you can do any changes or new development, any work exceed 10 hours will charge $10 per hours.
4. Website design, OpenCart as eCommerce solution, testing and QA.
Thanks,
Aziz Rattani