Converting to electric PAS is possible. You'll need the electric coloumn and a rack from a non-sport as these have a steering angle/torque sensor. Then you'll need the EPAS ECU and wiring and adapt that into your existing loom (ignition, power, mass and speed signal afaik). Personally i wouldn't go for the EPAS (got it on my 1.2 16v) as it's too light and inresponsive for my liking.