Going with this.
Stock radio stays in dash, but not connected.
Rear shelf speakers - DLS Reference R1073 7x10 3-way, fits 6x9 opening
Center front - Kicker KS4100 4x10
Subwoofer - Fosgate dual 12" Punch in the trunk, so big and wide that it will hide the temporary, ugly "restoration" job done on the wheel housings...
Amp - Rockford Fosgate Prime R300-4
Player - 7.0" GPS Navigation Touchscreen + 8GB micro SD TF+MP4 + FM +Bluetooth+AVIN+ photo + ebook reader + Win CE 5.0
Has arm-mount that swings 180 degrees and is easily hidden underneath dash. Very cheap from China. Connects to Amp with headphone outlet.