I have thought of using a DC-DC ATX supply and eliminate the inverter but I want 120V for other things if needed. But the cost and labor of going DC-DC is highe

I have thought of using a DC-DC ATX supply and eliminate the inverter but I want 120V for other things if needed. But the cost and labor of going DC-DC is higher than DC-AC-DC so the goofy inefficient route it is :-/