Turbo D gurus

I need a run down on what I need

EK CXi D16

Grabbing this manifold:
http://www.ebay.com.au/itm/Turbo-Exh...#ht_2143wt_932

Getting a t2>t4 adaptor to run my spare rb20 turbo i got lying in the shed

Will be cutting the welds and re-welding it if I'm not happy with it when I receive it

What else do I need ? Just a basic run down, costs aren't necessary as most fab work ill be doing myself

Thanks in advance!