In terms of on-line resources, Mark Conrad's translations of Viskovatov should be helpful (
http://marksrussianmilitaryhistory.info/)
Scroll down to the following sections:
Viskovatov Vol. 19 Part A - Organization of the Russian Army 1825-1855.
Viskovatov Vol. 19 Part B - Grenadiers, Marines, and Infantry 1825-1855. (Text.)
Viskovatov Vol. 20 - Carabiniers, Jägers, Rifles, and Cuirassiers 1825-1855. (Text.)
Viskovatov Vol. 21 - Dragoons, Horse-Jägers, Lancers, and Hussars 1825-1855. (Text.)
Viskovatov Vol. 22 - Gendarmes, Train, Foot and Horse Artillery, Sappers, and Horse Pioneers 1825-1855. (Text.)
Viskovatov Vol. 23 - Engineers; Garrison, Line, Invalid, Military-Labor, and Penal Units 1825-1855. (Text.)
Viskovatov Vol. 24 - Guards Infantry and Guards Cuirassiers 1825-1855. (Text.)
Viskovatov Vol. 29 - Don Cossacks and Black-Sea Cossacks 1825-1855. (Text.)