I don't know your definition of "race track suspension" but......I'd do with the JIC Magic SF1's. And yes, I think all the important people, such as myself moved to this site. We needed our own site, not just a branch of another branch of one.
Carsten, you should look into what is offered by Koni. They should have a damper that should work off the shelf if you do you homework properly (I hope you understand US slang enough to know what I mean). Their race dampers have threaded bodies so you can run coilover springs. In the back, if you are using a P11, you should again be able to find an off the shelf solution with a threaded body.
Depending upon your rulebook, you may be able to use spherical bearings to replace the suspension bushings. As for swaybars, you may have a better selection than us, but more likely you will want to have some custom made.
There is a race shop in New Zealand that can supply front bushings that will allow camber adjustment, although I would have them custom made with spherical bearings.
Much of this will likely apply to the Almera, but you will have to have struts. Check to see if Koni or Bilstein have race offerings for that car. If not, you can probably get the 8611 insert an have custom strut housings made.