Piano Concerto No. 1 in Eb major

I am starting a new piece called "Piano Concerto No. 1 in Eb major." Frankly, it would be badly written, lacking originality, and showing too much resemblance to Beethoven's Piano Concerto No. 5, which I am using as my example.

What I am planing on doing is take a theme I wrote for another piece, and developing it more so that it can have a piano part for the first movement. For the second movement, I am going to steal chord progressions from "Florence." For the third, I am going to steal all of my piece "Rondo in Eb major."

Since I plan to have the piece be approximately 20 minutes long, I am aiming for 7-8 minutes for the first movement, 4-5 minutes in the second, and 7-8 minutes for the last finale.

I intend to finish the piece before my ski trip in February, so I have less than a month. I'll see if I can make my goal.