The GRP (glass fiber reinforced plastic) Bellypan is a right and a left part and is made for the original exhaust.
The sidestand of your S1000RR is still useable. You need the mounting kit (VEH.034.S100S.K) to install it on your bike. This bellypan fit to the original side fairing and will be shipped with homologation EG/ABE.
Please mount the fairings before you paint it in order to see if everything fits perfect.