Dump the box springs-totally uneccesary and huge wasted space!
PS: running simple/independent linear motors, they may get out of sync and have differing lengths. If you run all (2 or 4) to max extension or min, I think they would get re-sync'd.
If you run them off a 12v power supply, wiring is very simple, basically a DPDT/center off switch which is wired (and works the same) as an old power window switch. The few that are 120VAC, I don't know how they control reversing them.
PS: I'm 72 yoa. We are getting to be OLD gimps!