Cheers for that guys,
unfortunately most of that stuff seems to be for the "JC cosmo", the model after mine.
Mines the HC, basically its the 4 door 929 shape with a single turbo 13b from a FC rx7, where as the JC is the 13btt or 20bt.
I think i should be right for mechanical mods, as alot of gear can be used from FC rx7's, such as turbo kits/computer upgrades etc.
Suspension is the major issue, with pedders and king springs sort of the only available without costing an arm or a leg.
Id love to find someone to correspond with in Japan that may have experience with these cars.