I never found a good reference for the stencils on the Las. In the end I carefully examined photos of WW2 and museum aircraft and went with that. I also got some info from plastic kit decal sheets. The text is too small to be legible on the skin so it does not matter what the writing originally said.
You can see my stencils on the default La-5FN skin. There are some on the wheel covers, on the radio hatch and the fuselage lifting points.