You'll have to find them first as they are few and far between.
I've got a batch of +2" springs being made for me, LWB will be £75 +P&P.
Theres not a lot else available but what do you want, these trucks don't need all the uprated drive train stuff a landy would. Don't need a front bash guard as it should have one, don't need diff guards, they're virtually indistructble.
Change the rear diff oil (preferably twice, run for 500 miles between) for proper LSD oil, many have been abused or had wrong oil put in and you'll find the rear LSD works much better.