I'm trying to monitor remaining CPU and memory resources on some ESX 3.x hosts. with Solarwinds Orion NPM 8.x

The problem is that I do not find a OID that will give me the correct data. I'm using OID 1.3.6.1.4.1.6876.3.x
The vmwCPU table will show me number of CPU's (cores) and Cpushares for ONE VM. I do not know how to view "cpushares" for all VM's. And I do not know how to show available (or total) cpu usage for the entire host.

Memory is also a problem. the "memavail" OID (1.3.6.1.4.1.6876.3.2.3) always shows "memsize" minus "memCOS", not memory available to new VM's.

There is a "memtable" OID that I think will show memory usage per VM, but I can only show one value (first VM on host?)

My question is:

Is there a snmp OID to read used/remaining CPU resources on the host?
Is there a snmp OID to read used/remaining memory resources on the host?