Best sourse for replacement power steering gearbox?

[CentralCoaster]

My wheel has about 4" of slop in it and it's all from the box itself.

I tried the adjustment on the top of the box, which did tighten it up a bit, but didn't remove much slop. It also caused the pump to start whining, so I'm sure it's too tight.

Ever rebuild these, or just ****can it? Rebuild kits are ~$30 assuming that would even fix the source of slop.

Looks easy enough to replace, I have a puller for the pitman arm, and everything else just bolts up.

I want to get something decent in there, preferabbly no Chinese remans.

I used these local guys for my replacement corvette rack, might give them a shot:
http://www.meridianautoparts.com/add.../82-00293.html

I noticed they also have a "high performance" and "quick ratio" box. I'll have to research that.

Rockauto has delco reman's for $195 + core, or A1 Cardont for $125 + core

Any other suggestions?