Hi Bill, There are a lot of threads on paint removal, including brake fluid. If you answer Mike's question on the engine type and manufacturer, you might be able to pinpoint the best approach. Regarding the fumes, are you covering the container. I did a post about using brake fluid,
Successful method for removing paint from Vintage Lionel Alco FA | O Gauge Railroading On Line Forum (ogaugerr.com)
I built a container using PVC pipe, which was easy to cover. I think the brake fluid can be used over and over again and then easily disposed of at a reclycling center that deals with toxic chemicals, so no need to dump it in the back alley.
PS, I had no intention of being a "Former Member" but somehow my account got deleted.