Hi, I'm Delphi expert with years of experience from D1 to latest versions, I've also upgraded many legacy Delphi applications to latests versions.
Can you please specify more details about your application:
- what is it about
- how complex it is
- does it use external components (which ones, and are there available in latest Delphi)
- does it use database (which one and what is the connection library used)
- is code well comented and organized
- do you use specific APIs, devices or assembler
From a past experience bringing a legacy app to a latest version may be an easy job, couple of days or a very complex one lasting months. It's very hard to estimate time it will take to finish it and thus how much will the price be it's much better to have this type of app as an per hour project.