TEIN SW20 Coilovers - $300 for a set of 4

$300
Front springs are 3.6Kg/mm and the rears are 7.9Kg/mm.
These are OK for a street car with standard anti-roll bars.
The front tops are adjustable for camber.
The rear coilovers have Bilstein inserts.
One of the rear coilovers has the anti-roll bar bracket missing, though you won't need an anti-roll bar on the rear with these coilovers anyway. It's better without one.
Pickup is available from West Ryde in Sydney. Freight is available at price for major cities and towns on the East coast is around $35. More remote areas will be a bit more. Send me your post code for a quote.
These coilovers have done a 1.08 lap at Wakefield Park, Goulburn.

What model TEINs?

PM'd.

Still for sale??

I know these are sold, but wanted to ask what's involved in putting Bilstein inserts in these?
Tried googling and couldn't find anybody that had this done.
Can the same be done to the front? Does it end up being cheaper to rebuild with Bilstein then to send away and rebuild with Tein? If you can use Bilstein inserts then possibly Koni?

Any idea what model inserts they were?
I have a set that just sitting around (and was considering selling) but if I can rebuild myself with other inserts besides Tein, I might give it a go on the track instead of my BC coilovers.

Thanks.
I'll ask him to note it down if he pulls them down before install.