Completely agree with you. It's pretty nice to buy all needed items when you market and list of needed parts on the same window. But crafting is a nightmare. Moreover, I can't switch from auction window to crafting window, but I can open market from crafting window. It's real annoying thing.
Also, another problem that i has discovered: batteries, weapon bodies, sun panels converters and device capacitors crafting with empty charge. It make sense, but i can't use them in craft, and main problem - I can't charge it by craft. I must build structures with gens and batteries to charge them, and then deconstruct this mess.