regarding structure, yours looks pretty smooth and standard, actually (as many levels as you show). Tournaments will ALWAYS become shovefests at some point. That's the whole purpose of raising the blinds -- to force people out.
When setting up a tournament, you can choose how long it will take and how deep you are at the start. Deeper starting stacks makes for a little more deep-stack play initially and delays the moment where the average stack becomes critically short, but accelerates the later stages to compensate.
You can use www.blindvalet.com
to assist with structure, or see the FAQ for pfapfap's cheat sheet. That uses the WSOP blind sequence, which I highly recommend. It's a smooth and rational sequence, and good to get used to. Then you simply choose starting stacks and round lengths to get the length of tournament you need. Tournaments end around the time that the big blind is 1/20th of the chips in play (average stack is 10bb for 2 players).
no 50s, please.