I used a Edelbrock alum Victor series that I got from jegs USA 1-800-345-4545,
www.jegs.com
. Your current setup looks the same as mine with a passenger side inlet. Remember I have a Left Hand drive USA side car. Jeggs part number for a passenger side inlet alum edelbrock waterpump is 350-8841 $156.99 USD. Fits all 289,302.
This is a good part with a ball bearing suported shaft and a computer designed impeller. Not cheap but really well made.