Finally chose Bullseye for our 31' class C because electric is simpler to install by yourself and should be more reliable (legs can't drift down because of some slow hydraulic leak). I designed and fabricated the 4 bolt-on brackets. Total system cost about $2800 and probably 70 hours of my labor (lots of time underneath measuring details of the frame rails to make the brackets). I didn't want to weld at left-rear location because it was about 2" from gasoline filler tube! Just finish 1st trip; system works perfectly. I put the remote control in an old VHS tape box, at end of it's 20' cable. This way I can be outside and watch legs extend while holding the remote. This seems superior to mounting it in truck dash. Also, put the 60amp fuse at the Control Module-end of the 6-gage 12VDC cable so you easily disconnect from your house batteries during system calibration.