Well now, knoxb, looks like you have to do on your own. You can google for more images of the real thing, or find out what engine/tranny combination does the M1070 use and look those up. Best photos are always from the junkyards, like the heavytruckparts.net. Chances are, the power pack you're lookin' for were installed in some commercial vehicle. You can also look your rig up on tpub.net, that would be even better, you can find many TMs there, their pictures are mostly better than photos. To replicate the piping in scale I'd recommend soldering wire. Hope it helps, have a nice day
Paweł