Has anyone looked into using a Alfa 159 3.2 V6 in their Stratos?

Hoping the forum can enlighten me with pros and cons and whether its possible.

A con is finding a gearbox. Most here in NZ are Auto Q4's. Would a 2.4 diesel box work?
A pro is its a relatively modern engine, easy parts availability, with VVT and 190kw or more on a aftermarket ECU

I am considering the 159 for two reasons
1. I bought a low km 156 GTA but don't have the heart to break it. Although it has some rear quarter damage it drives well and I have the Alfa bug and would like to save it.
2. Yes I know the 159 is GM based but there are lots of them about and they are getting cheaper.

I currently have a Hawk running a 164s engine and box and was considering setting it up with a Link Ecu, coils etc but would rather spend my money on something potentially better.

Thanks

Steve