I would set the dungeon chest frequencies of the railcraft items to this, personally. I find dungeon chests to be entirely too cluttered (there's a reason TooMuchLoot is in all my instances)
RailCraft
railcraft.cfg
I:armor.overalls=0
I:creosote.bottle=0
I:fuel.coal=0
I:fuel.coke=0
I:steel.ingot=5
I:tie.stone=0
I:tie.wood=0
I:tool.crowbar=0
I:track.basic=10
Sorry I was late getting to this part. I agree with what you've got here - again, I was trying to look at the larger audience. Trying very hard not to just limit things to my own preferences. Railcraft does tend to pollute the dungeon chests a lot though. As did Harvestcraft. That's why I dropped the cap for it to 16 from 64. 64 Meatloaf in a chest is just a bit over the top. It should probably even drop down to something like 4. Heck, if my ex was cooking, I'd recommend 0.