Yes, understand.... but to use the 16 GB modules is problematic, it is possible that is mean the new LR-DIMM, but they are still not on market......
when you have not the ram, then you have problem, its all about the mem here, because you cannot finish it..... probably larger SWAP file could help. how much memory it takes in the mesh generation step ? it can be seen in TASK manager, if set the MAXIMUM WORKING SET, from that you can see how much mem is used..... will PM you.....