ElectricMotorcycleForum.com

I have both panniers, a smaller 32 liter top box and a larger 48 liter top box.
I find the top box to be the most convenient storage set up. The panniers have a tendency to get in the way of my foot getting on and off the DSR but i have long legs at 6'4".
All options are stable and bounce around at roughly the same amplitude as the rider. As long as you throw a towel in to cushion your bottles, you'll be fine. The streets here in the Midwestern US are TERRIBLE and i've never hit a bump large enough to come close to breaking a glass bottle.

A Zero costs far more than $5k per bike to design, manufacture, test, warehouse, distribute, support and market.
Some of those costs scale better than others. For example, the cost to market gets less expensive per bike, the more bikes you sell. However, Zero is a mid sized company that has outside investors who need to get paid so there's a limit to how deep they can go into their own pockets as they try to scale up. (they're not public like Tesla and can't spend against their share price on the stock market)
And they already offer seasonal discounts and promotions. I got my 2017 DSR at a $3000 discount and they threw in $1500 worth of accessories.
Yes, list price on the bikes is expensive, and dealers don't have a lot of room to discount new bikes, but you're getting a relatively rare piece of seriously high technology with a much lower cost of ownership than a comparable ICE bike.
I'm on my second Zero and complaining about the price hasn't entered my mind for one second.

I put a Cycra universal front fender on my DSR.
I didn't like the way the stock fender flops around in the wind.
Had to drill my own mounting holes but it fits between the forks no problem.