What boat do you have? 5000lb is fine for most applications, but my R25 is just shy of 5000lb when full of gas and gear. When you add people it could be an extra 1500 lb.
If you can swing it, the hydrualic lift systems are WAY faster up and down than the DC motor/cable lifts. Regardless, get the 24V (two battery) system vs. the 12V. Twice as fast on the cable lifts, and less strain on the motor.
I've had a Shrorestation and it was good. If possible I'd recommend getting a fabric top vs. canvas - my Shorestation had the vinyl canvas top and it dripped condensation on the boat, causing mildew. The fabric tops don't have that issue.
Also - I'd recommend getting a canopy at least as long as the boat PLUS the motor. On my R25, that's just over 30 feet - but I only have a 28-foot canopy, and the motor sits outside :-(