If you're after standard ride height and still want decent ride and handling you can't go wrong with a set of Koni shocks paired with the standard springs. You could, if you haven't already, upgrade the ARBs to further improve the handling at standard ride height, it's a really noticeable difference on the T28 vans.
Give me a shout when you're ready to think about committing to the suspension change and I'll see if I've got something that would be right for you, I can also offer options for a lift if you did want to go higher. Cheers.