Best battery for converting '74 CB125S 12V upgrade?

Hi all. Sorry in advance if I violate any rules or norms for this sub. I'm brand new to all this and so am cafeing a little '74 CB125S to see how I like it. I'm upgrading it to a 12V system am am using this parts list that I picked up from chopcult.com:RS Dual bridge rectifier12v bulbs15A fuse12v battery or capactior12v flasher if running blinkersI was wondering if anyone had any input on a good 12V battery for what I'm doing. What amperage concerns should I have? Anything else I'm missing? I'm handy with my truck, including minor wiring stuff (I have a voltmeter), but I'm brand new to motorcycles. Thanks! via /r/CafeRacers https://www.reddit.com/r/CafeRacers/comments/aug2ig/best_battery_for_converting_74_cb125s_12v_upgrade/?utm_source=ifttt