I bought & fitted the 'B6' Bilstein dampers to my '95 t4 about 10 years ago, was no choice in the matter as they were the best option available
in my opinion they still are the best option
price wise they are no more expensive now than 10 years ago - B6's are ~ £400 a set now? (springs are another matter as the 'scene-tax' has more than doubled on springs )
I'm going to be removing the rear dampers for inspection soon due to rear spring replacement & hope they've suvived as well as the front pair (removed for front suspension refresh & inspection ~2 years ago)
if you're feeling flush then go for it
another worthwhile addition is a rear anti-roll-bar (if not already fitted as a vw option) as these transform a t4 from wollowing van to a more stable vehicle when combined with good dampers.
the rear arb setup is hard to find secondhand but does turn up, I believe Brickworks can supply new mounts / brackets / bushes & fastners but the bar itself is no longer available new
Just to mention....18" wheels give a terrible ride.
17" are the better option if you want larger diameter than 16".
Whatever springs/dampers you fit, the design is still OLD....and relies quite a bit on some give in the sidewalls of the tyres.
45 ratio on 17s are not too bad, but you'd be looking at 35 or 40 for 18".....and having limited options for the load index on them.
Well, itæs actually a mis-nomer that they are called shock absorbers.....the American word "dampers" is more accurate.
They "damp" the motion of the springs....they don't "absorb" the movement.
Make them firmer, the ride gets harder.