Front shutter release modification
The top shutter release button is in an awkward location when the camera is held in vertical and waist level positions. I can now offer a modification service to replace the self-timer with a front shutter release button. The new button feels like the lens release button, so it's quite light. The lever on the front release button can be configured as an advance lever lock, or just to disable the front release button. (The old self-timer release button is redundant, but I can replace it with a leatherette patch if required.) Modification price is $160.
Front shutter release button with lock lever