i also have the pss10’s and they are much softer than the stock suspension on bumps, i adjust the dampers down for daily use and if i am going to the track turn them up it only takes a few mins

the others to comsider is the ohlin road and track that you can get on ebay

Have you read about the Öhlins Road and Tracks. I have been looking into coilovers and they are top on the list for me right now. I believe they are less and have adjustments that allow for a good street ride.

You Tube

Beautiful car.

For what you are doing, I’d go with a Euro (edited, I guess this is called ROW based on Blue Chip's post below) M030 suspension, new strut top mounts, and replace worn bushings with OEM rubber.

Coilovers are great, but just unnecessary complexity or cost for what you plan to do with the car, especially if you just plan to set it and forget it and don’t have extreme ride height goals. Both coilovers and lowering suspensions are likely to add to the harshness you said you are trying to avoid. Everything is a trade off.

Where is this perspective coming from? I've had many cars with stock performance suspensions and three cars with coilovers. I currently have the Bilstein PSS11 coilovers and M030 sway bars on my 2000 C2, and it is great for what I want, but I wouldn't recommend it for someone who leans toward comfort rather than firm ride and handling. While the dampers are adjustable, it isn't something you are going to do all the time - the rears are behind a carpet shelf (luckily my used turbo carpets had a removable cutout when I got it so it is easier to get to) and the fronts are underneath the car. Coilovers are great for height adjustability - my rally car had a very raised suspension that coilovers handed easily, and I had the ability to change them based on the kind of race (stages) I was going to be running. It was miserable on the street. I had some on an autocross and DE leaning BMW, and I had it very low, very harsh, but perfect for events. For my current C2, I wanted to go lower than the available struts allowed => but I had to be careful since I am maxed out on some of the stock suspension adjustability - any lower and I'm into adjustable (expensive) swaybar links, control arms, etc. Its really all about how you want to use the car and what tradeoffs you're willing to make

I've got the street performance coilovers and have used them for a couple years now . I previously had row mo30 units. The h&r sp areonly a few hundred bucks more than a b8 bilstein shock and stiff spring set up , but the handling and ride quality as well as height adjustability are better than going the stiff spring and shock route so worth the 300to 500 extra
they are almost half the cost of the high end fully adjustable ohlins etc options
for a street focused car with occasional de or track days a good option . For a full track focused car or if you just have deep pockets , ohlins are amazing and pss10s a close second
You can quickly adjust the stiffness on both of those

I would budget for adjustable drop links and toe arms for lowering the car
uprated sway bars are a good idea
as is replacing all the bushes ( at a minimum any worn ones ) I used powerflex polybushes

im really happy with the set up on my car and h&r make coilovers for every 911 variant

the h&r sp coilovers are a jointly developed unit between h&r and bilstein and are very similar to the h&r bilstein jointly developed coilovers that the factory used on 996 gt3 cars