I have the set that you mention and I also have the original books that were published to accompany the Cards The work on the Chasseurs a Cheval that I mentioned pub 1926 and 224pp B/W Illustrations. As you know the work consists of the following.
1st Part - Historique du Corps des Chasseurs a Cheval de la Garde
2nd Part - Uniformes de la Garde Consulaire
3rd Part - Uniformes de la Garde Imperiale
4th Part - Guidons et Etendards
5th Part - Les Mameluks
As you say very little info on the Guides
The work that you mentioned Les Guides d'Etat-Major 1792-1815 was originally published in 1920
and is the text for plates 106-119. 118pp
I have the full set of original cards as well as the booklets which I find better than the modern reprint.
Best regards as always,Tony