if you can buy 2 MC it will be great, if not use the 2 DMC like this :

DL-DC-DC-DR
-DMC-DMC-
ML-------MR
---ST-ST---

with red arrows on DMC and ML/MR

or

DL-DC-DC-DC-DR
---DMC-DMC---
ML-----------MR
------ST-------

with red arrows on the middle DC, DMC and ML/MR