Mahal yung ganyang fabrication boss but slight dent on the wallet lang naman yan para sayo. Hehehe
Try morel maximo or focal access 2 way tapos amplifier actually hindi ako maselan sa brand but you can try JBL 4 channel and spend the rest sa wiring and labor. Sino pala gumawa nung focal i-bus installation? Para atleast may background ako sa installer.
SQ purposes, actually yung DLS suggestion is ok. Sky is the limit ba budget? Hehehe