My 3.4 swap kit came with a new SS braided hose from the pump to the steering box and a standard rubber power steering fluid hose for the return.
You can just run the proper sized rubber line all the way back.

I'm sure ORS would sell you the high pressure hose if you need it. trail-gear.com might also sell them...

89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim