I decided to write something about my Cat 325 DL. It is made from aluminium and steel except the superstructure cover which modified Bruder cover.
Cylinders are self made, pump is from Premacon, valve block from Leimbach. Drive motor covers are made by Ari (Hemi) and those are really good and nicely finished parts :-)
Building story can be found here
http://rc-tyokoneet.proboards.com/thread/36/cat-325. Unfortunately it is in Finnish but hopefully pictures says more than a thousand words :-)
Here is my latest video
http://www.youtube.com/watch?v=CNNGi9O-c4E