My 2000 A8L D2 w supercharger

[ob1]

Folks...I'm a newbie here from Sydney...have been on AudiAddict for a while...rather than re-post - have a look here if you wish...
http://audiaddict.net/viewtopic.php?...08ff9591402c73

Plus some videos onYoutube - search for "obevz" or "A8L Supercharged"

Quick summary
Bought her when she was 3 (2004) @ 92,000kms
One of only 18 A8L D2's imported in Australia by Audi.
At around 150kms, installed a Lysholm AX2300 Supercharger kit - ($20K) :
Had gearbox overhauled - it got a bit "slippy" and upgraded (std mod):
At 191,000 blew up the engine - with a whimper. Strange, about 1 month after the "major" 190,000km service ($4,900!)
Replaced it with a low compression, toughened rods, forged piston engine, with ported & polished RS6 heads. from Overland Parts in Gilroy, CA USA...really nice people, know their stuff...ask for Steve Zlotkin.
RS4 20" low profile rims & tyres
Custom extractors, racing CATS
9 different freekin exhaust systems - current is from cats into one 3" all the way to a small muffler and a larger back.

New projects
Replacing Radiator - coolant been overheating since I installed the supercharger in around 2007-8. Found out a simple fix...remove the long robber seal just behind the engine...that separates the engine bay from the air-con intakes...a tad smelly sometimes...but no overheating...unfortunately the radiator leaks - so a newbie on it's way Sep 2013

Am I going nuts?
Looking at replacing Supercharger with twin turbos - ala RS6 style...I think I may need a smack in the head...or start looking for beefed up Auto gearboxes - anybody?

BTW- I just had my sunroof fully replaced by Audi - for free...been leaking 4ever...Audi = nice folks

Keep well - happy to post pics...but 99% are on the AudiAddict link and Carl at A8Parts has been a great help over the years.

I do have the four Tyre Pressure Sensors and the TP Control unit...if anybody needs them...
The S8 from which my dashboard came (via A8Parts) had tyre pressure sensors and when that S8 went "bang"...this feature was enabled. And since my car never had that option, I now have a permanent message on my dash, that my tyres are flat... . Apparently the only way to re-set that to "OFF" is to have the option fitted and then via the menu, select "OFF"...but at $4K for Audi to fit these sensors, I can live with a flat-type image

Sorry for waffling...cheers, Osc