If you were in Van I'd say take your suspension bits to James at Suspension worx (or look into how much it would be to ship them to him [HTML_REMOVED] back).
The thing about suspension (low end, middle of the road, or high end parts) is that you don't really know what you got if it's not set up right. Know what I mean? You could upgrade to a Boxxer World Cup and be disappointed if it wasn't adjusted to work for you.
It will be cheaper and you'll probably be happier if you spend money on getting your fork/shock set for your weight/riding style. Any LBS should be able to get you rolling for pretty cheap. With the proper spring [HTML_REMOVED] oil you can get that domain dialled.