Enclosed autoracks - anyone tried making holes in the side-panels?

Model Railroader General Discussion (Model Railroader)
1

I tried to cut with the hobby knife the openings between panels but plastic is hard and though results would be good, it would take a lot of time. I am not sure if there is a dremmel attachment the thickness of hobby knife. Plano Models panels are nice but since they cost like the autorack I still hope to find some other solution.

Ideas?

2

Craft stores sell thin plastic sheets with holes used to weave yarn for pictures etc. They can be cut to replace the side panels. Holes are a little over size but better than making the holes yourself. Not perfect but give it a look.