I used a Rostra - fairly common aftermarket cruise module. I ended up making a new housing for the speed sensor by combining it with a speedo calibration gearing adapter...but you can also do a driveshaft magnet sensor.I thought about the Sniper fuel injection, but I read somewhere that people had some issues with the Sniper, and those issues had been corrected and resolved with the Sniper 2. So I called and asked if they had a Sniper 2 that would fit on a 2F FJ40 and they told me no.
I'll have to Google the Hyperspark.
Cruise control - Did you pull that off a donor vehicle (and if so, what was it), or purchase one? How difficult was it to install?
I also did a bit of extra legwork to make an old wiper switch into the "buttons" for set/resume - but I wanted it to be "hidden"/look OEM. Definitely optional.
Control unit: Sensor: