Modern Vespa

So i'm thinking about going with a full wave 12VDC system in my rusty VB1 200 project. I'm planning on installing around a total of 60 watts worth of LED headlights and a taillight. The scooter currently has a P200 engine and stator, so it would be simple enough to float the ground and wire in a TrailTech regulator/rectifier, BUT i don't want to use a battery in this particular scooter built. My thought was to use a capacitor instead of a battery in order to smooth out the power. I'm actually fine with some flickering of the LEDs when the scooter is idling, but i don't know just how much flickering to expect. I probably won't be running any 12vdc accessories (GPS/phone charger/ect). And i probably won't install a SIP digital speedo either...unless they decide to make a speedo that fits a VB1 headset that is.

I'm also a bit unsure what sort of performance i can expect from the horn. I REALLY like my VB1's old 12VAC horn, but i won't be able to use it in a DC system.

Has anyone else here done a full wave DC conversion with a capacitor, or does anyone have any input?

This is really the only documentation that i found online, and they didn't use a capacitor... https://archive.scooterlab.uk/convert-your-ac-ignition-to-full-dc-for-pennies-workshop/

Big capacitor, epoxied into an aluminum sleeve.
Mostly used on 80s racing 2-strokes and race bikes to dump the weight of the battery. Most 2 strokes were kick-start so the lead acid battery was wasted space and weight.

Your application with LEDs, however, I am not too sure.

'The Bat-Pac works on all PMA, and magneto type systems.
The Bat-Pac is compatible with 6 and 12 volt systems, positive or negative ground.
The Bat-Pac can be used along with a battery for improved voltage output of the charging system .

In general, if it has a permanent magnet flywheel, chances are the Bat-Pac will work.
Older bikes that have a point type magneto can also use the Bat-Pac.'

https://batpac.com/