VxRail 4 Node Cluster with 2 Different Nodes Types

Hello!

We have a 4x VxRail E660 nodes.  The first 2 are 2-CPUs with 256GB of RAM.  The other 2 have 1 CPU with 128GB of RAM.  All nodes have the same Intel E810 NICs and same SSD/HDs.

I know the 'rules' are the first 3 need to be identical but this is for a development lab.  We need to be able to build the 4 node cluster. Purchasing another node is not possible.  If there a way to do this? Maybe there's a KB on how to force VxRail Manager to accept this configuration when deploying?  Something support can help with?

Thanks

Michael