I've basically mounted some 7x16, 5x112 Mercedes Alloys on my van (they have an ET of 37, but I have all the spacers, studs, bolts etc. from brickwerks sorted).

The tyres on the alloys are knackered, and the load rating isn't great, so i've been looking through the forum (and the wiki), but have no clue what tyres to put on my van.
Most seem to settle on:
215/55/16
or
225/55/16
Or 215/55/16 on the front, and 225/55/16 on the rear!
This is new territory for me, so advice on what fits the van is much appreciated. My Van is standard height, no lowering etc.
Cheers,
HC