Lights, reducers, seat covers, 2nd seat, fiberglass oxidation!!

[BNB1023]

Obviously a new owner, I have a 2009 Precedent IQ w/4 12V. batteries. I have learned a lot from the forum, and am now ready to make upgrades to my cart that I got this week. Sorry in advance for the length...
1. Although not bad, what is a good, readily available product to bring back the shine and luster to the green fiberglass body?
2. Will get the LED light/signals/brake light kit. Most vendors do not reveal the manufacturer's name. What is a dependable kit maker.
3. Even though vendor said not needed, I plan to get a 48V to 12V reducer. Will it have wires to hook up the lightkit?
4. Seat covers - Do the stretch kind fit fairly well, or do I need to get the staple kind and hide the staples?
5. Finally, being a golfer, do any of the 2nd seat kits include a configuration allowing the straps for golfbags?
*****THANKS*******