This is what I did for the K classes:
K-27 Driver:
Removed // before direct-drive
Removed shadow container
K-27 Enginespec:
Removed tag "epbrakes" and value
K-27 ISV Frame:
Removed shadow container
K-27 OSV Driver:
Removed // before direct-drive
K-27 Trail Truck:
Removed // before animdist
K-27 #461, #462:
Removed maxspeedmph in smoke container (1 instance)
Removed maxspeed in smoke containers (3 instances)
K-27 #462 Tender:
Changed mesh for marker lights to read "d&rgw_k-27_462_tender_body/markerlights/rearmarkers.im" (including quotation marks)
K-28 Tender Doghouse Interior:
Removed attachment tag in main config
K-28 Tender Interior:
Removed attachment tag in main config
K-28 Cabin:
Created a blue texture, sized it 64x64, saved as TGA, name waterglass.tga
Created .txt file for waterglass.tga, named waterglass.texture.txt
.txt file:
Primary=waterglass.tga
Tile=St
If you have problems with other content, let me know what the errors are and I'll tell you which example to follow, or what else needs to be done.
Kieran.