There are no kits specifically for use with the Smart Upgrade feature. All installs can be used with it. All install kits can be found here
http://www14.software.ibm.com/webapp/download/search.jsp?q=%22Notes%20Client%22&cat=&pf=&k=&dt=&go=y&rs=ESD-DMNTSRVRi&S_TACT=&S_CMP=&sb=r