Checkout what I am looking at getting from Errol @ http://www.datrats.com.au ... any suggestions or comments welcome...

The struts are corner weight matched for 240 kg at each front corner. This covers 1200's, Sunny's, 510's, & Stanza's - with (L20B, SR20DE/T, CA18DE/T engines) as these only vary by 10 - 20 kg typically in corner weights. Heavier engines or lighter engines require different spring and valving rates. The spring and valving can be varied to requirements for the same price.

Each strut includes : -
Club race spec damper with valving rate matched to spring
Threaded platform, collar/lock nut and top spring support.
60mm ID linear rate coil spring (k = 5.37kg/mm or 300lb/in)

Tender spring fitted so main spring remains captive at all times.
$1458 a pair, with you supplying donor struts (200B, 240K or Stanza)

Adjustable strut tops with non wearing bearings are $600 a pair and can be made to suit the 1200.

AND FOR BRAKES:

The inserts are valved to produce a force of 150 kg extension and 120 kg compression @ a velocity of 0.3 m/sec.

One of the better conversions around is one built up by Trevor Pooley (Ozdat lister). I am also this conversion. The conversion uses the sumitomo twin spots that are widened to suit a 280ZX 20mm ventilated 250mm diameter disc. The conversion costs $730 total cost.