I'm not sure I understand your question; what do you mean by "but should really put their time elsewhere"? Are you asking for an amplifier that would deliver s

I'm not sure I understand your question; what do you mean by "but should really put their time elsewhere"? Are you asking for an amplifier that would deliver similar performance to this, because you don't have the time to build one, or that you suspect you'll come out ahead on build vs buy because of the price you value your time at?