Using Ethernet Hubs >100 meter distance

Hi,

I currently have an ethernet network which uses CAT5 UTP cable connected to a 100Mbps Full duplex hub.

I want to connect a computer thats approx. 800Ft away from my network.The cable has to be run underground thru electrical conduit.

I’m thinking of running CAT5 STP…one end will be connected to my existing hub, the other will be connect to another 100Mbps hub which will the be connected to the P.C.

Should this configuration work???Is there anything I’m leaving out???

Any suggestions would be appreciated.
Jason.