Hi. This answer is not a official HP answer even if I am a HP employer.
 
To connect your PC's and your 3000 together I will surgest some steps.
 
1. You are today running Novell on your clients (pc's) . Novell uses
normaly IPX and hp3000 uses TCP/IP. So first you must have i IP address
range . Where you can have that I don't know because I do not live i US
and here there is a university who handles that.
This will give te HP3000 and all pc's a unique address so when (if)
connecting to internet you will not have the same address as any other.
Normaly you will have a range of 256 - 2 addresses.
 
2. You must install TCP/IP on your pc's. You today have reflection on
pc's so I think that WRQ RNS (also known as 3000 connection for windows)
will be best. This is not a free product. Talk to WRQ. But the price is
nearly as high as reflection it self.
If your pc's are running windows 95 I belewe that WRQ produkt NS/Open
will be enough.
 
3. Connect the lans together. I think that your way sounds good. But to
be sure I must se it.
 
 
4. Configure TCP/IP at your 3000. How to do that is described in the
manual "HP3000/iX Network Planing and configutation guide"
This is a long description so its not easy to put here.
Also you have to stream jconfjob.net.sys
 
5. Startup the network at the hp3000.
   Normaly
   NETCONTROL START;net=LAN1
   NETCONTROL START;net=loop
   NSCONTROL START
 
I hope that this will give you some hints. If you need more help I am
sure that HP near you can help to get everything running.
 
regards.
 
Hans Fohrman
HP Sweden