1969 Camaro - Quick Ratio Steering Box, which one?

[68LS1]

i am doing some research for a friend who wants to upgrade his suspension on his 69 Camaro. One item is to remove the vague feeling original power steering box. This is a list of available boxes I have come up with.

Hotchkis - $599.95
http://www.hotchkis.net/delphi-600-s...ring-gear.html

Global West - $579.99
http://www.globalwest.net/1967-1968-...obal-west.html

Flaming River - $615.00
http://www.flamingriver.com/index.ph...1/s0002/FR1560

AGR Performance Resto Steering Box - $387.97
http://www.summitracing.com/parts/agr-492117

Speedtech ATS 670
http://www.speedtechperformance.com/...prod/prd71.htm

DSE $595.00
http://www.detroitspeed.com/Steering...ring-gear.html

Lee manufacturing
http://lee-powersteering.com/steering-gears.htm

Am I right in assuming any of the 600/670 series need a different rag joint coupler? And power steering fittings?

The Global West & Flaming River look like the same item, with Flaming River having a billet cap?

I used an AGR 14 - 1 box on my C10 and it fitted like factory. The one listed looks like an original 700 series.

Any feedback on those listed would be most helpful, or any other suggestions.

thanks