I have fitted a Creative Engineering Weedeater beam recently (std width). I wanted to lower the van a bit (old beam was rotten -MOT failure - hence new beam) so I set adjusters half way and it lowered the van A LOT! To be honest the ride quality is awful (using std shocks) - looks good tho! Later on when funds allow I will buy some of their shocks that are the right length - but I need to lower back first to get van sitting right before I order shocks.
This weekend I plane to raise it - hopefully being new shouldnt be a prob. They told me to raise van up on axle stands, slacken nuts and use a screw driver to seperate adjuster toothed plates. The weight of hubs/ wheels etc should help getting the wheels down. They also said to me that the Bump stops - or rather lack of - isnt a prob and that the anti - roll bar isnt needed on a lowered van.
A bit off topic but hopefully a bit of help!