Really ? You deviants

Did you see this set on here ? I can't remember.
I had a wobble recently and was thinking of flogging it and getting some more up to date and join the knuckle dragging E46 M3 lot. However the missus of all people has persuaded me to keep it. Ideally I would like a bit more grunt but I am not sure the best way to attain this or who to use. I don't want to swap the engine or turbo it. I have a spare M30 that could be fettled, or should I just keep an eye out for an Alpina M30 lump ? But they don't exactly grow on trees

Paint and interior is first though then engine work later.
Mark.