You could easily utilize your existing mixer into the top of a rack without too much effort. They don't make rack ears for that mixer?
No they don't make them for this particular model..... and there is no way to mount it into say another rack or I could just use the DJ Shuttle I have... but, would still have all kinds of wires (really just 1 Audio, 2 Mic, and 2 Output)
No honestly I think I'd prefer a rack mountable mixer such as the Dennon X500 if I could find one with two mic inputs that have tone, gain and volume controls and XLR connections for both.