@eberhab hi. Good to know it's working and that you were able to sort a lot by reading that thread.
As far as the emulators... Just stick with Pure and Staging. Not sure what's wrong with the pure setup that you get a blank screen. Make sure the .conf options for pure are specific to the emulator version.
Theyre working on yet another fork of DOSBox that looks promising. Keep an eye on that thread. The guys on there are very helpful.