Modification of the form titled - "List Your Products or Services"

Ours is a business directory website [login to view URL] based in and focussed on India, which has joomla 3.9.22 version installed. The following editing is to be done In Business Listing Form (Silver and Gold Listing Package): 1. In the drop-down menu of “Select State” Field (in both Silver and Gold package pages): a) Add the States “Telangana” and “Ladakh” in the list of states in the alphabetic order. b) Replace “Uttaranchal” With “Uttarakhand” and replace “Orissa” with “Odisha” 2. Replace “Fax number(Optional)” field with “Price rate (Optional)“ field in both Silver and Gold listing package pages. In this field provisions for entering both alphabets and numbers should be available. 3. Add the drop down menu to the “City” field, which is associated with City field of “Post your Buying Enquiry” form in the home page. 4. In Silver Package page, replace “GST No” field with “Business Hours(Optional)”. It should however remain as it is and mandatory in Gold package (Paid Listing) page. 5. Replace “Upload Company Logo” with “ Upload Logo / Product / Service Image ( jpg/jpeg)” (in both Silver and Gold package pages). 6. In the “Silver” package page Increase the character limit in the “Description of Business” field from the present 500 characters to 750 Characters. [login to view URL] the "company Video link field" in Gold Package form. The work should not disturb any of the functionalities, looks ,structure, or other installed programs on the website. The live site should continue as it is during the above work. Please mention the cost for this service.