alternator upgrade and gauge help

:help:Iam wanting to upgrade my alternator from stock which cant handle the
load (the voltage ticks while the turn signals blink lol and is moody just
died the other day) and my instrument panel to a Redline carbon and add aftermarket gauges for better reading and visibility. Its a restore so i want to freshen everything up to par since a newer stereo will be put in etc.. I have AC in it to mention. Any suggestion of the conversion and should i upgrade my ammeter to a voltmeter during Iam restoring the dash and want to get it all done at once. Will a 60amp do it or should i go with 100amp alternator? Is there a company that sells the kit brackets harness etc. Thanks my electrical knowledge is bare minimal so iam trying to learn.
Help me gurus help me:prayer: