I've completed the front panel machining on the chassis for my homebrew 3 challenge radio. Shown above is the completed chassis, below is the chassis before machining.
I am recycling an old Nemes Clarke receiver chassis for this project because it is a good size allowing room to work. It is also 'green' to re-use old chassis like this rather than throwing them away. Chassis like this one, of approximately the same size, are readily available at almost any hamfest.