I'm 165, no gear, and decent pace (MotoAmerica), and I think the stock suspension is pretty good. Assuming your weight is within its range, it's probably fine for you as it is. I'm not going to upgrade mine, at least for a few months of club racing. How much do you weigh? If you're much heavier, you'll likely need a stiffer rear spring. If you're around that, you should be ok.
FYI: I was advised by a top USA pro race team on the V2 to set sag unusually high for a race / track bike: 30-35mm. I've done that, not changed any springs, and the bike felt pretty amazing, the first weekend I was on track. I'd be happy to share my set up, if you want to message me. But if you have someone local, I'd at least tell them this range. That's my advice anyway.
If you can get the fuel mapping and throttle remapped, I'd do that. Either with a turning program, like Woolich, which I used, and it came out great, or one of the "out of the box" tunes you can get here on the forum. The OEM maps are awful; designed for emissions and noise and other tomfoolery. Getting it smoothed out is critical to making this bike ride well -- street, track, gutter, whatever.
Those are the only things I would call, "requirements." Here's some other notes and ideas.
The bike is relatively heavy (well, it could be lighter, anyway). If you can get an exhaust to drop some weight, do that. But they are egregiously expensive for these bikes. LW lithium battery is the best way to drop a 6-8 fast, and relatively cheap, pounds.
OEM tires are bitchin. Stick with them, unless you have some compelling reason not to.
I thought the OEM rear sets and clip ons were awesome. But it's all about fit, and, to a lesser extent, preference and riding style. Have someone who knows what they're doing measure you out and see if you fit well. Or just think it through, and do it yourself. I'm 5'9", and it fit great.
Brakes are very good, but front can be a bit spongy, but that's from a racer's perspective. It stops hard, but doesn't have the best feel. If it's a street mix bike, you can put on an RCS 19, and it will help that. But if I'd probably leave it OEM, if I wasn't racing.
This bike rules and is designed to perform on a track. Half of the joy, and ease, of buying it is to not have to change a bunch of sh*t. Get your suspension sorted, and go ride the piss out of it.