[Wine] How to use the wineprefix with another wine-path

[abb4]

Hi, there
I recently purchased a copy of bordeaux in order to try the dib engine (and pulse) in wine1.2 
I would like to use this in already installed bottles.

So I tried something like this:

code: [export WINEDIB=ON]
then (as an example)
code:[/opt/bordeaux/bin/wine | env WINEPREFIX=~/.wine-test wine winecfg]

This does create a wine bottle, but in this way the dib engine doesn't get loaded in the program I use. 

Any ideas how to do this in a proper way?