318 build

ok i have a recently rebuilt 318 its mostly stock it has a rv cam i it now, i wanna tear it down and redo it with a new cam and few other things but i have a few question that need answers first. so first off the bat is i have heard people say i can put a 360 crank in it with no machining i think thats wrong but im not sure, if a cant what would i have to do if a can what would be the the pros and cons "i mean opinions not performance facts"next up i want to put a slightly more radical cam in it but not to uncontrollable as its an automatic and i want a smooth idle for trafic and parades so any and all recomendations are great and links to places i can read more on the cam would be nice. moving on i would like to go with a electric fan thats pretty easy i guess my only question is what brand of electric water pump should i run with?, again all opinions and and links to more specifications are welcome and appriecated. my goal is to have just my alternator running off the crank, that leads me to my next question is there a way to run a serpentine on my alternator instead of the v-belt i only want that because i like the looks of the flat belt also pros and cons if a can do that. now for tappets and rockers what should i do because i have no idea about performance ones so im kinda stumbling along in that area, i have done lots of rebuilds but they where all stock builds.

so thats it for now thanks in advance ladies and gents
Thomas