Yesterday got a tip from Martyn, who found information about LEGO official instructions for building a mini Bulldozer. It is a 'Combined model' of 8294 and 8295 sets (lets call it C-model in analogy to the usual B-models).
This should be the model, with most spare parts ever...
This is a LEGO CLUB exclusive model, announced at the 2008 Club Magazine number 4.
With clubcode "BOUWEN" you can download the instructions from www.legoclub.com, yourself (after signing in into your account).
Anyway here it is a direct link to download.
As for the frontpage instructions translation (Martyn, thanks here too) we have:
This mini Bulldozer may look small, but That does not mean that it is not super strong! With It’s serious Technic construction power does it wipe streets and building areas clean.
Build the mini bulldozer with parts form 8294 Digger arm And 8295 telescopic lift