commercial floor plan design

have a metal building 50x80 feet. need 20x 50 of office space designed in the front of the building. The plans of the building are included. The doors and windows can be moved to wherever desired. need three offices, a conference room, reception area and bathroom with shower. I am including an idea of what i am looking for. This is just an idea. i just copied and pasted so feel free to move doors, walls , etc. The small entry to the back of the building where the machines are is a transition pad where you can step on a sticky pad or put on a clean suit if desired.