1. Railcraft is almost certainly crashing because of the Chisel version
2. Hence why both are wrong according to the server
3. Forestry does exist - http://jenkins.ic2.player.to/job/Forestry_Dev/458/
Working Chisel for Railcraft 9.5.0.0: (that I presume it's wanting) - http://coloredlightscore.us.to…hisel-2%20v1.7.10-Dev/46/
If that doesn't work, then I'm out of ideas.
I'll give that Chisel build a try. Many thanks.
As for point number three, the OP says
Forestry 3.3.0.458
The link you gave me says
Forestry 3.5.0.458
It took me a while to realize it was probably a typo and I should go with the build number.