Wouldn't have thought so. It just unbolts and lifts straight up and out doesn't it? Should take no more than an hour tops.
Drain system [slacken bottom hose]
unbolt rad and hoses
clean up the area [optional

]
replace rad with new sensor switch
hoses on
refill with coolant
Run the engine with heater turned to HOT [so that water runs around the heater matrix]
check for airlocks
DONE

*chances are jubilee clips will be seized, bolts will be rusty, and you will slip with a spanner and slash a knuckle or three - so maybe 3 hours
