CAD help please.

Hello all,

Let me start by saying that my CAD capabilities are rather limited. I
can draw simple shapes and setups for single level pockets etc.

Where I have problems is where multi level pocketing and cutting is
required. Here is what I am trying to draw and machine. If anyone can
lend a helping hand it would be appreciated.

Basically, picture a standard rectangular swimming pool, with the
deep section angling up toward a shallow section, wich is horizontal
and then 3 steps from the shallow to the top of the pool deck. The
steps, however are only 2/3 the width of the total and are centered
between the two walls. The dimensions are as follow:

Rectangle is a 8" wide by 12" long piece of aluminum and is 6" inches
high. There will be a 1" perimiter around the pocket to be machined.
The steps are parallel to the 6" width and are 4" wide. the "deep"
section starts at a 5" depth and slopes up to a 1 1/2" in a
horizontal length of 5". The steps are 1/2" deep each.

Can anyone help me in how to draw this and subsequently produce the G-
code to macine it? I own both Dolphin and Vector 9.3, so help in
either or both would be most welcome.

Thank you
Tom Csibor