project pier custom php developer

i'm looking to add to the project pier web application.. some customization for me to manage a group of inactive clients/contacts and add an quote generator. so I can send invoices and quotes which will improve functionality. i have an invoice template.. when we fill in the information for the invoice it should save the quote and then email it to the client.. once the quote is accepted it should be saved... once the quote is accepted... it will be an active project and an invoice should be sent.. all invoices and quotes will need to be generated pdf documents when emailing them.