OMG, you are actually not aware of my post quoting your original silly statement and creating a snarky response? I edited my previous post to help you comprehend the point I was trying to make.
I am aware that others in this thread (which you seem to have not read in its entirety) have already met your challenge. And I am familiar with the prices of audio electronics cases, PS's, and connectors for DiY'ers. $300 is a ripoff.
What's next from you? A double-dog dare? To build a pile of audio crap? No thanks. I built my first amplifier kit back in about 1968. I'll stick with my $400, 70wpc, vintage 1993 Classé A/B amplifier.