Choosing a power steering gearbox.. to go high end or not?

[1000rrstunna]

I am looking for a new gearbox for my 69... the frame seems to be clearanced for the power steering unit... I was looking at a redhead or the AGR performance boxes but they are about 450$... how are people getting along with the A1 cardone rebuilds ? I am not about cutting corners nor am i about throwing an extra 350$ out the window on a power steering box.... I am using a gm type 2 pump with the Billet Specialties Tru-trac serpentine kit that I have it flows 3 Gallons per minute at 1200 psi... this should be more than enough to power the stock steering gear correct? any advice and experiences appreciated.

thanks