Power steering help

I have a 65 Valiant Signet, 273 Commando that I have swapped out the steering box to a Borgeson Power box, and am now trying to figure the pump mounting out. I have a Saginaw pump and brackets I got off a 318, not sure of year, but things do not seem to mount up. Any help would be great, is the water pump different between the 273 and the 318? The lower radiator hose seems to be in the way or maybe I just have it all mixed up.

Thanks for any help or photos, Once the install is complete I will send photos, It will be an early "A" with a small block, headers and power steering.