Rack depth needed for an ML350e G8 ?

[AnEng]

Hi,

I'm trying to find out the minimum distance (depth) between the front and rear posts of a cabinet, in order to rackmount an ML350e G8.  I know the server is 740mm deep (29 1/8") and that the part code for the rail kit is 667272-001, but I don't know what the mount depth is for the rail kit.  I've spent the whole evening Googling and scouring HP's site to no avail.

Can anyone help me please ?

Thanks !

Kev. UK.