Yep exactly the point- there’s not an out of the box NFS server that will easily work with FCPX. Not that it’s impossible but if you don’t want to upgrade your hardware you would be best served by hiring a workflow expert to mod your existing setup vs. going back and forth via pure network IT support. They’ll know your storage but few of them are likely to have tons of hands-on experience with FCPX- (and if they did you’d be all set already.)
Noah
FCPWORKS – FCPX Workflow
FCP Exchange – FCPX Workshops
XinTwo – FCPX Training