Build a CRM / Invoice System Website

building a new brand CRM system by collecting modules / features from other CRM System focus on: Invoice /Daily Transactions / Small Business Item Inventory Menus: 1- Dashboard [only to view summery] Daily Transactions:  Net worth & Account Balances with set goal feature.  Income vs Expense [Circle Chart Diagram]  Latest Income / Latest Expense Invoices:  INVOICE OVERDUE  INVOICE NOT SENT  INVOICE PARTIALLY PAID  INVOICE PAID  ESTIMATE SENT  ESTIMATE ACCEPTED  Receipt Item in Stock:  Item name / qty available Contract expiration.  Client name / contract type / expire date. 2- Customers  New Customer / Import Customers 3- Vendors  New Vendor / Import Vendors 4- Leads  New Lead / Import Leads 5- Sales  Estimates  Invoices  Payments  Items  In Stock 6- Transactions      7- Bank    New Deposit New Expense Transfer View Transactions Balance Sheet & Cash New Account List Accounts Account Balances 8- Contracts  New Contract 9- Domain / Hosting  New Domain / Hosting info 10- Reports Transactions Reports:  Accounts Statement  Report by Date  Income Reports  Expense Reports  Income Vs Expense  Report by Categories  Report by Payees  Report by Payers Invoice Reports  Invoice Report by Date  Invoice Report by Customer 11- Settings i will give you links of other CRM / invoice system build in PHP that will have similar features and apply it on my system