edit website

I want my wordpress C2C ecomerce to be edited by getting in to the code and make some changes. The work is as follows: 1. On my search bar, the column that gives an option to choose category should rather give a option to type location 2. in the sign up page the column for contact should allow the user to enter his phone without the inclusion of the country code. Thus the country code should be set to default "Ghana's country code which is +233" 3. Currently user is given an option to verify his phone number after registration on the user profile page. I want user to very his phone number after submitting his sign up form before given access to his account. 4. On the product display page, each row should display 2 product on a mobile view. 5. product should display without displaying the side bar on a mobile view. Note my budget is $30.00