Yet More Unix Questions

[Larry Foard]

Is it possible to get a version of NFS for MSDOS that would allow a 386
running ESIX (with NFS option) to be used as a file server. Specifically
I am looking for a way to use a 386 under unix as a replacement for
Novell, while still being usable as a unix system.

Ideal setup:
 A 386 running ESIX with NFS, a number of cheap MS DOS machines networked
off of the 386, capable of being used as dumb terminals (over ethernet)
or using the 386 as a file server. 
      
Where can one obtain NFS for the PC? Is there a PD version? Price is a
fairly major concern.