[TriLUG] Diskless w/s for legacy DOS app?

[bp]

My family owns a video store which uses a piece of DOS software.   Every 
so often one of the hardrives or something will go bad on one of the two 
registers.(std. pc)  Lately with the price of hardware so low they have 
decided to invest a bit for reliability.

The DOS software is installed on system A, system B connects via a 
windows share from system A which is mounted as drive M: and launches 
the dos app as m:\dos.exe in a console.  The app prints to a dot matrix 
printer on lpt1 w/o spooling jobs.

So, the linux portion.

I've read linux does diskless workstations well.  Linux does samba quite 
well.  Linux does dos emulation.

So could I wrap up all of this as a no nonsense workstation void of 
breakable bits like hd's & Windows?

I'd like to burn a cd or write a diskette to boot machine B with 
network, samba and dos emulation support.  This would allow us to make a 
dumb workstation with the minimum fuss.  Disk goes bad, just shove in 
another copy of said cd/floppy.

Where do I start?  Is the dos emulation pretty solid?  No unix chars 
going to corrupt the DOS software?  Will dos emulated program be able to 
print to lpt1?

Thanks in advance,
-bp