EX60-2 Thumb Circuit

I'm planning to add a thumb to my EX60-2 and need a hydraulic circuit to run it. I'm thinking of using the unused offset boom spool. It'll require me to fab up a pedal and run a cable to the spool since it's not hydraulic. This seems to be the most fool proof way but it will be pedal actuated which isn't the worst. I'm used to that from another machine I run. I'd add a relief valve so I could tailor it to the bucket hydraulics.

If I were to go electric over hydraulic and run it off buttons...

EX60-2 Thumb Circuit