Default memory settings for Data Platform services aren't mutually compatible

I downloaded the DPDP bits from the corporate web site and tried following the hopefully happy path from there after first uninstalling my old CB bits.  When I was setting up the new "cluster", the console came up with a set of default memory settings for all of the services and with Analytics grayed out with a default setting for it waiting to be used.  When checked the Analytics box and then proceeded to the next step I got an error indicating that the sum of the services' memory settings exceeded what was available.  (Bad out-of-box experience for a customer.)  I dropped the KV setting to 1024 and then it worked - but - we need to make sure that the suggested values don't over-allocate memory.