Networking 4 PC?

Hi everyone

Can anyone give me an idea of how much to charge for networking 4 PC’s.

all are win.98 SE.
two PC in one room
and the other each in a seperate room
there is two printer and the web connection is via a dial-up on one PC.
All what I need to know is how much would I charge for installation/configuration of the hardware and software ?
I am going to use Linksys
Cable/dsl/router BEFSR 41
print server EFSP 42
switch EZXS55W
4 Nic card LNE100TX & Cat5 e cables

Thanks