Time for a new power steering box: removal/install tips

My current power steering box in the '75 Duster has turned into the Exxon Valdez. Leaking everywhere. The vehicle has a 340 with Hooker Super Comp headers.
Anyone have tips on removal and replacing the box with this configuration? Looks like I will have to lift the driver's side of the engine up some to get that puppy out. Would like to NOT have to remove the header on that side. Suggestions from folks that have been in my situation appreciated.