Nobody seems to be answering the OP...
you can get good sounds with your setup. I think it's a question of getting to know the SYB-5 very well and accepting its downsides: to me the tracking isn't always good and it has a tendency to sound rather cold/digital - which can be used as an upside as well..
In order to get a good synthy signal out of my SYB-5 I have to play *Very* clean, make sure my articulation is really good and possibly add a pedal after it to warm up the signal or at least make it more interesting (could be a sansamp, a chorus, a phaser, some delay,..)
Not having all the pedals everyone is telling you you should have is a positive thing: get creative with what you have and you'll get the most out of it. I currently have +14 pedals on my pedalboard (one of which is a multieffect) - took me many years to get them all and to really appreciate what each and every one of them does (still learning and finding new sounds - mostly by coincidence!)
All the best,
Herwig