I've just got off the phone to Tein UK. It would appear that there is now a fully active, height adjustable system available for the RCF.
I can vouch for the quality of Tein Suspension I had it fitted to my track prepped RX7 and more recently the fully active system fitted to my highly modified Mini Clubvan.
I am going to get this fitted to my RCF although my car has the Lexus AVS system this system will blow it out of the water, plus the coil-overs are fully adjustable for ride height.
Prices are as follows the four coil-overs i.e. springs and dampers which are the top of the range (I believe less expensive ones are also available ) is £1320.00
And the top of the range EDFC Active Pro control unit is £751.00 these prices are for the units only so you will have to get them fitted at extra cost.
I cannot put into words how this system transforms a car, my Mini which was fun to drive was to say the least a bit harsh which was okay for a while. But when I had the Tein system installed it was mind blowing, you could potter-along at a sensible speed and it was truly comfortable, then if you put your foot down it noticeably tightened up. Then when cruising on a motorway it would ride like a limo compared to standard.
I believe there are a few Youtube videos of the EDFC Pro Active which are worth checking out. I'm waiting to get price confirmation fro Tein UK later today but I'm certainly going to budget to get it.