Hello,
I have an engineering degree from University of Munich (Dipl.-Ing.) with a specialization in Aerospace, earned in 1997.
I have worked in the aerospace industry since 1998, and have spent more than 14 years doing conceptual design of FAR25-certified transport aircraft (Advanced Design, Future Projects).
I am currently based in Canada - Eastern Time Zone.
I would suggest that we discuss in more detail what you need, and what the application is (field performance, cruise speed, range, payload). As for the cost, I have quoted 3000$, but will probably have to revise this once the amount of work is clear.
Thanks,
Sid