Sales Force configuration

Further enhancement of configuration of our Product Price History (Enquiry Line Item fields)

We currently have a tool that allows us to calculate sales prices based on history of the data (product) and calculations of cost and sell price (margins) We want to enhance this, to include, not only sales won, but opportunity (we have re-named as "enquiries").

Looking for someone who has great experience of Sales Force Development. A proven track record.

The job includes:
• Amendment of Custom Lightning Component to include
variables for new data table and possibly adjusting the
custom buttons handling
• New Wrapper Class to act as source of data
• Ensure list is ordered by date – Implement comparable
interface
• Create new method that queries both order line items and
Enquiry Line items
• Amendment of Apex class to populate data table with both
Enquiry line item and Order Line item info
• UAT
• Creation of Test Code coverage
• Deployment

Please provide information on your experience, availability and your understanding of this project.

We have had other quotes outside of PHP and its been estimated around 16-20 hours work.
Opportunity for more work, for the right person. Please quote accurately.