Hydroboost anyone using stock PS pump?

Thinking about grabbing a hydroboost system (can get the unit for free) from wrecked astro van. The PS pump is toast.
Has anyone used the stock mopar power steering pumps with a hydroboost conversion? Mine is the canned ham type Saginaw unit. I've read that the hydroboost needs 1500-1600 psi and 3.5-4 GPM flow.
What modifications were needed on your PS pump ?