Making a Russian Aeroforce Space Helmet

Im planning to attempt to model this high altitude Russian helmet
using the images provided as my reference. This will be pushing the boundaries of what i’m capable of in terms of modeling, and i’m really just feeling around in the dark when it comes to workflow and what tools to use, as im not formally trained in 3D modeling, so im hoping some of you could just give me an idea of what tools or modifiers im most likely going to need to use to make it.

You won’t need any special tools or modifiers. Maybe the bevel modifier if you want to keep the bevels adjustable. I would start with a simple base sphere and cut off the bottom half. Then extend it downwards and pull and pull till you get the base shape. Then cut the opening and get the other
base shapes for the details. Then worry about little details and bevels last.