Pump is around $160, rack is around $275, high pressure hose custom made is $80-100 or $250 for OEM. There is a by-pass part someone on here makes that turns your rack into a manual with no power steering and a belt you can buy to bypass the pump. $45 for the bypass and $20-30 for the belt. This is the cheapest method but won't help if you are leaking from the rack which is between the fire wall and rear of the engine. However, Lucas power steering leak works wonders on the leaking seals of the rack. Costs about $8 at your auto parts store.
I replaced everything personally and it feels like new!