Which rear shocks can get me back up to stock height or higher? Options

[moggy]

After our first rally here in the UK over the weekend (finished 34 out of 50 (IMG:style_emoticons/default/smile.gif) )I've realised we have a serious ground clearance issue. The car is simply to low and had to be walked thru the rough sections. The fronts are presently at stock height and I'm happy we can probably get the ground clearance we need at the front by adjusting the adjusters to the max and higher profile tyres. However at the back the higher profiles tyres just won't be enough.

I've presently got KYB's on the back (with 165 springs from Pelicanparts). What good quality aftermarket shocks can get me back up to at least stock height or prefereably higher? I need them to have damper adjustability and height adjustability. As far as I know my options are Bilstein or Koni......am I correct? do both shocks have both attributes I'm after? As most of the 914 aftermarket stuff is focused on lowering the suspension I'm worried that even with the spring perches on their highest settings it won't be getting me at least back up to stock height. Is my worry needless? Is higher than stock even a possibility?

Also a worry is that the 165 springs I've recently purchased will be loose if I raise the suspension to this height...?? anyone have any comments on this?

Thanks in advance.

Moggy