Transform Vocal Melody into Classical Masterpiece

I'm seeking a talented musician to breathe life into an old recorded vocal melody of mine. This melody needs to be developed into a full, regal-sounding classical song, with an arrangement featuring real instruments.

Key project specifications:
- Music Genre: The final composition should firmly belong within the Classical genre, embodying the intricacies and sophistication of this style.
- Mood: The arrangement should evoke a 'Royal' feel. Think grand, majestic and opulent.
- Instrumentation: While the piece should incorporate a range of classical instruments, a prominent focus needs to be on a full choir. Your ability to arrange for this ensemble will be critical.

Ideal candidates for this project should have:
- A deep understanding and appreciation of Classical music.
- Previous experience arranging for a choir.
- Exceptional skills in turning simple melodies into complex, full-bodied compositions.
- A portfolio that showcases regal-sounding pieces.

I will provide an audio file of the vocal melody. The final product should be a polished, professionally-arranged piece ready for performance.