Hi Marv, well it's pretty complex and has a lot of little elements in it so it's going to take numerous passes probably building one type of shape at a time.

I'd probably start by drawing in a profile curve in the Front view and using Construct > Revolve to build the base shape.

For these cutouts here, draw a 2D curve in the Top view, replicate it using Transform > Array > Circular, and use Construct > Boolean > Difference to cut the holes in the base shape:


For these parts that looks like a cylinder laying on its side, then make a torus going around it by drawing a circle and using Revolve, then use Transform > Array > Dir to replicate it along the cylinder, then Boolean union the cylinder and the torii together, then replicate those around using Transform > Array > Circular, then boolean union those with the main shape:


I'd worry about filleting after more of the main features had been created first, the filleting may be pretty complex and it's possible you may need to use a different CAD program to do that part and bring it back into MoI afterwards. But it depends on how complex it is once all the main features are in place.

- Michael