RWS 460 mag tuning kit???

I was wondering if anyone knew where I could find a spring/tune kit for my 460 magnum?  It is fairly new gun but have read about these maccari and venom tuning kits really smoothing the gun out.  Not really looking for more power just a smoother longer lasting air rifle.  But I cant really seem to find the parts and I am fairly proficient on the net.  I did find pictures on photobucket of a stripped 460 and new maccari spring and new gaskets but cannot find retailer.  Sorry if this isnt the proper section of the forum, (if not feel free to correct me).  Shot in the dark any of you have knowledge on this matter but you guys are some very smart fellas so who knows.

Here's the man for the Maccari but I don't see a spring kit for the 460. http://www.airguns.citymax.com/page/page/251488.htm I would give them a call.
I have found B.B. Pelletier's air gun blogs to be the most informative out there. He has several of them on the Maccari, here is one http://www.pyramydair.com/blog/2006/05/how-long-does-mainspring-last-part-2.html  You can link from this one to the main blog and enter Maccari. The blog search won't link here.

Yea, pellateers 460 was the one I saw torn apart on photobucket.  I'll have to try that blog.  I'm just not sure if a spring for a different model will fit?  I cant find extensive enough specs, Pellateer gave the spring specs but I cant find enough info elsewhere to purchase one.  I did see the blog you have listed, actually I was reading it about 4 hrs ago.  Guess I need to get to chattin on it.          Thanks again Doug, I almost just pm'd you with this question instead of starting the thread cause you are very knowledgable with the air rifle and scope stuff, I appreciate the help.          Where those chokes anything ur lookin for?