I flipped through the Märklin Full Line catalog and could not find any C-track scissors crossing. Using SCARM software, I drew the four configurations for standard C-tracks and one for compact (slimmer) C-track turnout.

Standard C-track Turnouts (24611 / 24612)

Slim / Compact C-track Turnouts (24711 / 24712)

Take note that you need to cut side of the embankments on the colored pieces 24064.

Märklin recommends using 24071 in combination with these slim turnouts 24711/24712. Unfortunately, using the 24071 will cause a gap that could not be filled by other smaller straight pieces.

Here is an example how different combinations of scissor crossings can be put together. Total length 2,865.2mm (= 2.87m),