I got this Kavs Motorsport 15% Reduced Supercharger Kit, new from a seller in the UK but a change it plans means I'm going with a different pulley set up (I'm reducing the cam pulley so belt wont fit mine) so this is surplus to requirement.
Kit comes with:
1x KAVS Motorsport Reduced 15% Supercharger Pulley
1x Gates Belt - suited to fit your new pulley perfectly
1x Set of specially selected NGK Spark Plugs
This is new but the pulley got a cpl chips in transit (reflected in price).
Thi kit would retail for €165 from Kavs direct (€90 pulley; €25 Belt; €25 plugs; €25 shipping)
I'll take €130