Re: dunelt cruiser
I would build the kit and see how it runs before swapping sprockets, air cleaners, and other items. I know that seems like the long way around, but gear ratios depend on your weight, if you live in a hilly area, how much you want to pedal to reach cruising speed, etc. I run a 39t rear sprocket and weigh 220lb, but I live in a very flat area.
“You're only young once, but you can be immature as long as you like" -Unknown