Compatable steering racks

[RM1SepEx]

I've seen that early WRX racks have a different mount (clamp over rubber vs. cast mounting ears) but mount at the same location

WRX have slower ratio than STI but same mounts

F5 Donor listing includes NA Imprezas, do they have the same ratio as a WRX?

My 05 WRX rack was destroyed, I bought a rack from an 06 impreza wagon (photo included), it doesn't come close to the same mounts, input is a different shaft (flats vs splines) and comes out at a different angle (See photo, WRX rack on top)

I see AJW using an outback sport as a NA donor...
what racks will actually work?

I'm confused