what amperage alt should i run?

I have dewired the amp gage out of the dash wiring, and the only additional power requirements i will have on my barracuda will be an electric fan. I dont plan on adding A/C or radio. Car was radio delete anyways. I prefer the roar of an unmuffled V8 to a stereo anyways.

What.do y'all think of a 50 amp alt for what i am doing ??.is it sufficient ?

Thanks
Matt