It's most likely the racecraft or saleen sway bars are rebranded eibach bars. So likely a 22mm front and a 25mm rear.
That is annoying that they don't have the spring rates, probably a rebranded eibach spring... The roush kit was just a rebranded eibach.
Anyhow, kyb is a good budget damper. Koni's are the next step up. H&R and ST are the lowest price coilovers I can recommend if you want to have some adjustability to play with.
Parking Lot Hero
2008 WRX daily driver
2003 ZX3 23D Autox Car 42 FSP
"Hella Functional - Raced, Not Hard Parked"