The most reliable thing that could fit in an Isis shaft footprint with low overhead and pit is Schindler 3100. It only goes 3 stops though. The next best is the 3300. This is great for low capacity jobs. For higher capacity jobs with low rise, you could use a generic, such a canton or bore-max or bucher above ground holeless, cantilever, or telescopic hydro. Especially if controller closet is close enough and large enough. Just stay away from SmartRise though. MCE is a better choice.