Yes, I purchased some 30+/- D&RGW engineering department K-36 drawings from livesteamlocomotives.com, not cheap. Also a handful from DPL, most marked 'obsolete'. Plus hundreds of wonderful shop photos by Carlos Llamas and Roger Hogan and a bunch of my own photos of common 36/37 parts from CRRM's K-37. The drawings don't quite make a complete set, going to have to figure out the ashpan for instance.
As for Carrara Pro 7.2 (not sure about ver. 8, would love to get it tho), Mark Bremmer's Carrara Dark Arts website [
www.markbremmer.com] has several free tutorials to get you started with a link to VTC for the remaining online tutorials for a reasonable cost, CD also available. Once you get used to Carrara's particulars, it's a fairly easy program.
Hope this helps if you're still interested.
Mike