Hello everybody,
I corrected some things i didnt remember right when i made the first post and added some details directly above.
Maybe you can help me easier now 
Thanks alot!
slartibartfass
I just set up an NFS share on my NAS box to see if I could make it work.
It is open to any device on my subnet so no user/pw needed for me.
ch_nfstab reads as
192.168.1.5:/mnt/HD_a2 NAS1: MAX_WRITESIZE 1024
type ch_nfsmount NAS1:
and it pops the shared volume on my workbench and works pretty well. I went ahead and added it to the Interface in Genesis (under Events) to run the cli command ch_nfsmount NAS1: when online which mounts the share volume as soon as I go online and removes it when I exit Genesis.