Carl von Plotho's Der Krieg in Deutschland und Frankreich in den Jahren 1813 und 1814, Vol. 3 (1817), Annex pp 88-92 provides an OOB for "Das Reserve Corps. May 1814".
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Both of these URLs provide fairly clear copies of the required pages. It should be noted that this unit is now commanded, in this OOB, by Grand Duke Constantine rather than Bennigsen.
You will note that the format follows the highlighted yellow portions. So, you could save some time by copying those parts, then adding to them the info on the above pages. Also note that the artillery companies are included in this new OOB. We also appear to have lost the Uhlan/Lancer division.