Beamdog/steam versions

Having two different versions of the same game is terrible.
They both have access to different premium modules.
Steam version has the steam workshop.
They both have different builds.
I bought the deluxe version from Beamdog and got the regular version from steam as a feature.
I have the local vaults pointing to the same place.

Is their a technical solution to only use one version and get all the benefits of both?