Hi- So I'm looking at upgrading my central control unit from a Beri mixer, and am looking for some advice.... The Central station is pretty close to what i want, but doesn't have enough analog inputs, has other bells and whistles that i don't need, etc. the coleman M3PH MKII is pretty close, but at almost a grand, i'd want *exactly* what i want, not pretty close... so i'm investigating DIY options, as i have a friend that could put it together for me as long as i source parts, and come up with a some sort of schematic or block diagram, etc. i'd want to customize it thus'ly: 1. 5 inputs, 2 pairs balanced TRS, 2 stereo mini, 1 RCA 2. 1 powered headphone out, selectable from any of the inputs 3. 3 balanced monitor outs, also selectable from any of the inputs (of course) 4. Master volume knob, mute button, power light. 5. 1/2 rack space sized chassis. Any opinions on if this would be possible and cost effective (meaning, spending about the cost of a central station on parts)? Any leads on where i could get more info or a rough design that's fairly comparable to what i'm wanting and could be customized without to much trouble? Thanks for any input!