Rear lift springs are available, for the SWB you can just fit LWB rear springs for a 1½" lift, front end just wind the torsion bars up.
Part time 4wd so no centre diff so no need for a centre diff lock, rear diff is LSD and locks up really well if used with correct oil (mine can be a swine in carparks etc), SWB not quite as manouverable as SJ or Jimny but will run rings round anything else. 2.7TD is london taxi engine, rear diff is from patrol, front diff related to impressa WRX STi, so transmission is pretty bomb proof - only real problem is the only mods available are shocks and the lift springs, just about anything else you have to make or import form, US, Oz, Israel etc