I hope that doesn't put you off of getting into Eurorack. Most semi-modular synths are a good value for those just getting into Eurorack. Small systems just don't provide a lot of value for the money. If you have the money and are going to expand in the near future... they make more sense. But you have to cram a lot of features into a small space and that too has to be a consideration.
You'll also find something called a "synth voice" which is basically a Eurorack module that contains all if not most of what you need for a synthesizer. Intellijel also makes the Atlantis module which is based on the Roland MS101. That too would also make a great starting module. But you'd have to supply a MIDI to CV converter if you want to use a controller or you DAW to address it.
Just don't think of any starter modules or synths as entry-level. Most of them aren't. The Mother-32 or Atlantis still hold there own in a massive system. So you won't lose value if you expand. You just might end up with some redundancy or options depending on how you look at it.
Are you going to take another crack at sketching up another rack? You didn't pick bad modules at all. It's just the configuration would make things difficult for you. I hope you try again.