I would buy used, but if I had to buy new, I would do something like the below.
I mainly make boom bap, hip hop, trip hop & a little bit of techno type tracks. I also like to have fun, play & I love variety.
Sp-404sx - $392
Microfreak - $300
PO-12 Rhythm - $60
PO-33 K.O. - $90
PO-14 Sub - $50
Volca Keys - $150
AKG K240 headphones - $70
Around $8 left over
Might do the Dude mixer for $100 instead of the PO-33 K.O. (5 channel mono mixer that’s awesome).
Currently out of the above I have the sp404sx, K.O., Dude & AKG headphones. Never used the other stuff.
Would use as follows (I think all would be fun to play with) -
Headphones to hear
Sp404sx as my main tool to build tracks, it’s a great sampler, fun to make songs on & it has a lot of effects, so I would also use it for sound design & live play (a lot of sample memory as well).
Microfreak for synth sounds.
PO-12 for drums.
PO-14 for bass.
Volca Keys for analog.
If I got the Dude, I would use it to plug the Microfreak, PO’s & Volca into then plug the Dude into the sp-404sx that way I wouldn’t have to unplug anything making a quicker workflow. It’s a great portable mixer, I really like how it sounds (it has a few tricks too, if you peak it, it adds a nice distortion & when it’s overloaded with sound it starts to lower other sounds giving it a pumping/compression type effect).
If I got the K.O. I would use it as another sampler (I love samplers), I really love it’s sound & the 404sx doesn’t pitch, but the K.O. does, which I really need, so thinking about it, I would probably get the K.O. instead of the Dude mainly because of the pitch feature.