Analogue-sequencer

I've five midi synths and one CV/Gate mono SH101 and just wondering if the Cirklon CVIO option would be overkill.... and an expensive way of sequencing just that one synth via this method? I may add another mono at a much later date, but that's only 50/50 chance.

Also the CV breakout box seems to be massive with loads of CV sockets etc which just won't be used in my set-up...

Any opinions please?

Thanks,

John