as for the dip in the side in my first image! well
1. starting with the same shape we created before, i simply extruded the sides along at the 6 intervals shown!
2. then in surface mode with select through off select the shown faces in use "Divide Loop" in the tools menu, you might need to install this plugin from here:-
http://www.supercoldmilk.com/ac3dplu...x.html#divloop
install this file in the plugins file in your program files and restart AC3D for it to work. This will insert a line straigh across the middle!
3. In Vertex Select Mode, shift the vertices shown below down a little
4. and again a similar tech to before use shift click and move the vertices about a little to get the desired shape on your dip.
And bobs your uncle, well I really hope this helps, and would be keen to see your results but i'll look in the morning but its 2.17am in england and i am knackered. Good luck!