Yes.
They are exactly the same. As is the rearwheel of the Monster S4R and S4RS. They even have the same part. number i believe. So the rearwheel from a 996/998 will fit a multi and vice versa.
The front will also fit, but the brakes have diffrent mountings (i looked into this when looking to change over to a Multi 1000DS and i wanted to bring over my 748 SBK Mag-wheels.)