Easiest way for constant rwd would be to lock (weld?) the centre diff and not have driveshafts - you'd need to sort something about those holes though, you can't just leave them open!
There are D2 coilovers that fit, suspension from other common models does not afaik.
If you're thinking of trying to drift one.........it could get expensive, in fact very expensive very quickly. You'd have the disadvantages of:
- transverse layout (for maintenance like clutch and gearbox changes, a pita)
- not an overly strong gearbox (but if used in rwd it might be acceptable i suppose)
- a reasonably heavy car for the engine size (it's around 1400kg worth)
- although D2s fit, i'm not sure they'd be a great thing for track. you'd probably end up spending a lot on suspension sh*t trying to get it right
Also I wouldn't be a fan of it, the cars positive is that nobody really knows what they are, and nobody normally sees anyone doing burnouts or slides in a bluebird so they're assumed innocent by the general public. Don't change that please.