Regular was a red sewn number. Stenciled painted numbers was regular carried of 
Reserve-Infanterieregimenter.On august,15.,1914 the Prussian War Ministry give order to use green numbers. 
For the model 1915 Spike Helmet with removable spike came (july,28.,1915) a new green cover, most with painted green numbers. But: In fact the troops remove the remarkable numbers often in the field!
On October,27.,1916 come official order to remove all numbers.
how to pack fur pack? Do you mean the 
Tornister? Look here:

and here: 
http://www.dsm1918.de/rath2.htmlWhich concerns bayonet: The regular bayonet for Infanterie up to the year 1915 was the 
Seitengewehr 98:

This was replaced starting from 1915 by the SG98/05, since it was too long for the trench combat and often broke off!
Here the 
Seitengewehr 98/05:
Bayonets with the saw back mainly by pioneer-troops were used! By the Infanterie only every 10th man carry a saw-bayonet as a tool. This were often NCOs.
Regards,
Marcus.