Ah but have you checked out the XL - extra modulation points - it's a bit more than a forbidden planet, but it is very good value for money
Same with Maths (again a bit more expensive) - there's a lot there for your money - and it would fill a lot of empty space!
another option for rectification is kinks - and you get sample and hold, noise and logic in a small inexpensive package
if you like inexpensive, then there's a lot of very good options with doepfer
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities