Change for SuiteCRM add-on module

I need a change for the multiphonefield SuiteCRM add-on module. This installs and works ok for SuiteCRM 7.5.3. [login to view URL] It has by default 4 fields (pulldown, textfield, radiobutton, tickbox). Instead I need these fields (see mockup attached): 1. Automatic line number (integer) 2. Textfield (100) named "Product Name" 3. Popup lookup from Accounts-module named "Supplier" 4. Number float(8,2) named "Quantity" 5. Number float(8,2) named "Price" 6. Calculated Number float(8,2) named "Cost total" = Quantity * Price Otherwise the functionality needs to be same as the original module. It must be installable on SuiteCRM 7.5.3. You will need to be able to provide a working version where I can login and test. Thanks, Timo