Geoff,
This was part of the April 1968 'Car Life' Magazine article.
Price
Charger (Base).......................3129
Charger R/T (440 Engine).....3506
383 Engine (4-Barrel)..............137
426 Hemi...................................605
Automatic Transmission..........196
Power Steering...........................95
Front Disc Brakes.......................54
Power Brakes.............................40
AM Radio.....................................62
Tachometer..................................50
Road Wheels (Chrome Trim).....77
Deluxe Wheel Covers.................37
Vinyl Top.......................................85
Sure Grip......................................42
Performance Axle (3.55).............83
Dana Rear w/ 3.54 Gears.........137 (Required for R/T with 4-Speed)
Console........................................53
Light Group..................................16
Tinted Glass.................................40
Remote Mirror..............................10
Exterior Decor Group..................82
F70 x 14 Red-Line Tires............77 (Standard with R/T)
Road Wheels (15" x 6")...............90
Drag Strip Magazine (February 1968).......great magazine