This tutorial will show you how easy it is to create a GUI for almost any command-line tool just by replacing a few lines of codes, and as a result, perhaps help scratch your own itch.
In the absence of any migration tool at all, a last resort is to develop home-grown migration scripts, either from scratch or based on any existing source available.
Create servlets from scratch in the model by using the tool palette item for Siplet (SIP servlet) or ConvergedServlet, and by creating a new stereotyped class in the model.