Drum to disc? Is it worth it?

Evening guys and girls.
I've found a Micra in a local scrappy with rear discs, the whole rear braking system looks brand new too.
After searching and not really finding much on the subject (although I see many have done the conversion) I want to know if the conversion is actually worth it performance wise.
We plan on rallying the car across trails, tarmac, and desert.

Is it worth it?
Thanks in advance.
 
NOt for what you are planning, drums are simple, easy to work on, and you will get a working handbrake.
Thanks for the advice SuperUno, that's great to know.
Would it be a worthy modification if we were road rally/circuit racing perhaps? I'm assuming the standard drums suffer from heat fade quickly?
 
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