It makes me laugh when you see cars advertised as rust free! Unless these cars have been in japan (No salt) garaged and never driven in the rain, then if you looked hard enough I'm positive you could find rust on nearly all e30's out there.
Proper restoration takes deep pockets. I think there are a lot of turds out there that look shiny until you get close and get you screwdriver out. (stand back)
How many turds are going to make it through the next winter with all the salt that's been slung down?
One thing is for sure e30 numbers are only going one way.
There is also a lot of repair work that is sub standard. Its no good welding a plate over already rusty metal. Cut and paste is what is need and done properly it costs.
I'm still not convinced on the shell dipping thing. It takes balls to completely gut a shell and can you ever replace the factory look?
Steve is doing some serious restoration work and I tip my hat to him. I am personally going to be keeping a close eye on his efforts. We could all learn a thing a two about the dipping if he takes the plunge.
Ball's of steel Steve (and rust

)