C# - Extract Convert Data From Serial Port in .net

Seeking an experience .net developer to create an application that runs on windows xp and greater. The app 1. Grab data from serial port, convert serial port data from asciss format to plain text and export to a web method. 2. Log request and response from web method. 3. Create a UI that will allow users to set config settings that will be sent to web method. 4. Create a UI that show log request and response In your quote please include the following: 1) How long it will take to implement. 2) Price. 3) Similiar project you've worked on. 4) Why it should be written as a windows service vs windows application. 5) The data that will be parsed is tabular