Mini Cooper S parts to Mini One

[Innuendo]

Hi!

I have a Mini one with the following Mods...

Mini cooper S gearbox (163bhp one)
KN panel air filter
Ngk Iridium
Mini Cooper s Shocks(don't know if this is the correct word)
Eibach lowering springs
MTH tuner file(for 98 octane fuel)
and 1 or 2 things more that i am not remembering..

I went to a rolling road and i have 130+ bhp

Recently i have had the opportunity to grab everything i want for a symbolic price from a cooper s(talking about the engine)

I don't want to supercharge it...

I'm thinking in things like...
cooper s throttle body

But i don't know what else can i get from that engine(cooper S) that i can put in mine..

For example...

cams? is it worth it?
take the "head" of f,polish it, and install it on my one?

I would love to hear suggestions...

BTW is there an FSE for the Onecooper?

i need power...(no need to say to buy a cooper S or to switch the engine...)

Thank you..

Best Regards

[Innuendo]

How do i change this post to engine tuning section?