Thanks to informations gathered on this forum I was able to change on my own the cooling pipes and the supercharger isolator.
Parts:
1) Upgraded Metal Coolant Water Pipe System Kit 3.0 280 USD, ebay
2) solid supercharger coupler isolator uprated X260 43 GBP, ebay
3) intake gaskets, oil cooler gasket
4) expansion tank venting hose, circa 40 USD

It took about 1 week, 2 - 4 hours per day with no rush and a lot of head scratching.

I highly advise having a low profile torx T30 key and a low profile 1/4 ratchet (also for T30 socket)