For a 2005 STi Wide Blob?

I think I may be getting the rear shock clunk sneaking in, so I'm putting suspension high on my list for next year.

If I had in the region of £1000 to spend am I best spending everything I can on Coilovers and fitting/configuration, or is it worth going a bit cheaper on coilovers (if possible) and picking up some "other" suspension parts such as bushes/roll bars/etc?

Replies such as "don't bother for £1k" are also welcome, as long as i'm not in any danger riding around on clunky shocks I can save up a bit longer and spend more if needed.

 

coilovers front and rear whiteline arbs and droplinks front under brace top strut brace and rear one thats what id do upto u though ure hard earned