I must say.. Recreating origional cabinets is a pain!
It's not so bad if your just using the origional cab as a router template to make a copy, but when your actually making prints...Sheesh.
Here's my "creative" method used to measure and duplicate the odd shaped side panels:

I used the 1" X 1" Grid to accurately determine the end points of the various arcs, and then used simple geometry to calculate the exact radius of the arcs.
This by far was the most difficult part of the entire cabinet.