Customise Dokan Pro Plugin

Hi, I have Dokan pro on my website, and the plugin is not functioning properly. I need it fixed, and these are the issues: Changes required to Dokan Pro Request Quote Module 1. For Guest user role, ability to submit quote requests with only Name & Email ID required 2. Buyer / Guest should only be able to add quantity required to the quote request form. The pricing should be hidden initially. Pricing details will be added by Vendor 3. Ability to add products from different vendors to the same quote, and quote request should be split and sent to their respective vendors automatically. 4. When quote is successfully submitted user should be notified “Your quote was successfully submitted, we will get back to you shortly” 5. The buyer and vendor should be able to negotiate on price using the request quote feature till the quote is converted to order by customer or vendor If you can help with this, please respond with a timeline and quote your fees