That price range and your goal aren't gonna work.
Not getting pillowballs is stupid - you won't notice the vibration and its better for pretty much everything.
If you wanna go low, no matter what coilovers you want OR even if you go air (looking at $4k), you're gonna need adjustable arms (from SPL) to get everything aligned.
And then you need wheels that are gonna fill out your fenders
Before you buy ANYTHING you need to seriously think about the end point.
U wanna do something like this:
Which is basically on the ground - that's air suspension. Air struts, controller, tank, etc. You'll still want all the suspension arms to dial it in. And if you are on air, your wheels should probably be close to 0 offset or its gonna look like ***
Or you can do where i'm at:
This is top of the tire just inside the fender, probably a good 2.5 inches or so. Thats static, no air, Aragosta Type-S coilovers, every single SPL arm, -3 F and -2 R camber. Daily driveable (i have a second car though, so i don't), no rubbing or scraping except the extreme driveways/ramps. 20x11 +!5 front 20x12 +20 rear with 275/30 and 315/25. Room to go bigger tire in rear. Front fenders pulled, rears just rolled
Most coilovers can achieve this. Fortunes can, Stance can. Not sure about Powertrix, I think so, i just have no experience. KW V3's cannot.
And if you're ok with a higher height thats got a bit of wheel gap, any coilover will do. I think powertrix even lets you get to stock height, even if thats stupid and pointless
Again, though, budget ahead of time. It sorta sounds like you wanna be low and do it for cheap . . . like a beginner 240sx build. I did that. i've seen that. Don't do that. It won't ride well, it won't look good, and you'll probably end up buying parts twice
Price out what you want and cover these categories:
Coilovers or Air suspension
SPL Arms
Wheels
Tires
Install
Suspension
Fender modification (may not be necessary)
dig through those wheel fitment threads diligently, find something you like, copy it. thats the surest way
dont cheap out