1980s Vintage Ensoniq Sampling Keyboard

Real fun and very clean vintage Ensoniq EPS 13 bit sampling Synthesizer for sale or trade. The unit is in excellent condition especially for its age and comes with 6 sound disks including the OS disk. Everything functions perfectly as it should, no stuck or dead keys, all buttons perform, drive reads and boots disks and all disks themselves boot perfectly. This also includes a 4x Memory expander upgrade as well. You can load and play back 8 sounds simultaneously. There are conversions available to boot from a USB stick as well. You can sample any sound from another keyboard or even through a microphone and change the pitch with each key. I have never used that function but as everything works fine with the synth, I'm sure all the sequencing and sampling functions work well too. I'm up for trading for other instruments such as guitars or possible other synths or Canon camera lenses (full frame) or flight simulator equipment or selling for $500. Includes the keyboard, power cord and 6 bootable disks. Let me know what you have and we can maybe work a deal. Thanks for looking.