The short answer is 'yes'.

The clock reset knob is actually attached to a cable that runs to the back of the clock. The cable is now available in reproduction through BE/A Parts and other suppliers.

The stem for the odometer reset is also available - JulesdaWiperman had a batch of them made up, you may also want to try Greg at http://www.rt-eng.com

The knobs themselves and the special barrel nuts to hold them are available from a variety of sources for about $50/pr