How many parts are there? What size are the parts?
From your image I see at least 8 parts, each requiring there own mold. If designed properly, and since you are asking here, I’m guessing you can’t design them properly, a few of them could be straight-pull molds from Protomold. Figure $3-$5K each for those. Some of the larger parts could probably fit on a mud tool but probably not 2-up. A manual mud tool will run you $12-$25K each depending if you have slides, two-shot or any other features.
I know some folks are big on it but I don’t see much price difference between aluminum and steel with a mud tool.
If you get into production numbers over 10,000, multiply my estimates by 10.