Pamela's New Workout is a very powerful and flexible module, especially combined with Pexp-1 expander. I would start there and then consider which of the Turing Machine, RND Step, Rotating Clock Divider, and Ochd you really need -- Pam's overlaps with all of them to a greater or lesser extent. Also, since the recent firmware update, Pam's does quantise to scale (which is awesome) so the Intellijel Scales my be less useful. That said, DFAM really enjoys a good quantiser which is maybe reason enough to keep Scales.

On the saving money front : ST Modular Switched does the same thing as the Doepfer switched multiple, but it's a DIY kit. It is also smaller and has the cables and switches at the top and bottom respectively, which is better than left and right.