I know there are a few people here from the 7/8ths forum but thought for the rest of you this thread may be of interest. Anybody who may be considerings modelling a Cat D4 will find the photos and drawings useful.
http://www.7-8ths.info/index.php/topic,16682046.msg42234.html#msg42234
If you click on the link "My Gallery" under Jim's signature you will find photos of some of his other models.
Kool. Thanks for the link, Gordon.