is there a cheap, easy way to letter a loco?
It is not expensive but it is not plug & play. It takes some practice and using the correct tools. There are decals and dry transfers.
http://www.google.com/search?hl=en&q=lettering+decals+model+trains&btnG=Search
Rich
I model the maine central and get my decals here
http://www.mgdecals.com/ (http://www.mgdecals.com/)
Woodland Scenics dry transfers work well. How extensive are you wanting to reletter them?
Kevin