if you have a pre 1998 1.0 its far cheaper to just buy another 1.3 micra. unless you find a decent 1.3 engine and just change the engine over, as that is a straight swap.
a good 1.0 clutch like LUK will be ok for the 1.3 engine aslong as you dont do any power tuning mods on the engine. the clutch and box dont cope with any more than standard 1.3 torque.