Thanks, that's pretty cool of you to package up your photos in a convienent .zip format. Makes for much faster downloading.
As far as the TD goes, I would cover the parts that are supposed to be white (end caps and control panel) in blue painters tape, which you can get it at Home Depot, Lowes, or just about anywhere paint is sold for home decorating purposes. Cover enough to protect from accidental overpaint, then use a brush to hand-paint the part that's supposed to be gray.
If your TD isn't permanently attached to the butt plate, you could also cover the control panel and end caps in newspaper taped down with painters tape and just hit the rest of it with gray spray paint.