You’re giving us quite a challenge. The number of lines of code or the development environment used is not much to go on when it comes to estimating development time, I’m afraid.
Unless you could share some more information on the project, I can only go on my gut feeling. It tells me it is more than a couple of days work but hopefully less than a couple of weeks.
Let’s say a developer will have to spend a week (40 hours) porting your project. Given the hourly rate range above, we could guesstimate a cost between $400–4,000. That’s a wild guess, though.