Cheers for the info. I was hoping to be able to import this map locally but my machine is clearly not spec’ed high enough for this. So I have switched to doing the import process on a remote VM with more memory and then exporting the GH artifacts. (This is probably the best long term option for my situation anyway.)
As you say, after doing the import the memory requirements are much lower so there should not be any issues running the server.
Thanks again for your help.