Having built a few sets of split rims, this is my new project.., thought I would start a thread incase anyone wants to do there own and use it as a reference.. It's not that hard to do..
These are a what can be achieved (my first 3 sets done a few years back)
Speed lines

BBS RS


Compomotive Dage Fuch

These are the Ronal / ACT SX

I found 4 off in 8.5x18 et13, and then 2 more 9.5x18 et18 so 6 wheels to do, which works out well as I can swap them between my VW T5 and the Z4 as they are the same PCD
I need to source a couple of different barrels and possibly 2 dishes which are available from Germany Felgendefuch (great place for split rim spares), hoping to end up with
2 off 9.5x18 et around 30 / 3" dish - Rear z4 / Rear T5
2 off 9.5x18 et 35-40 2.5" Dish - Front T5
2 off 8.5 or 9x18 et35ish - 1.5/2" dish Front T5
These are a what can be achieved (my first 3 sets done a few years back)
Speed lines

BBS RS


Compomotive Dage Fuch

These are the Ronal / ACT SX

I found 4 off in 8.5x18 et13, and then 2 more 9.5x18 et18 so 6 wheels to do, which works out well as I can swap them between my VW T5 and the Z4 as they are the same PCD
I need to source a couple of different barrels and possibly 2 dishes which are available from Germany Felgendefuch (great place for split rim spares), hoping to end up with
2 off 9.5x18 et around 30 / 3" dish - Rear z4 / Rear T5
2 off 9.5x18 et 35-40 2.5" Dish - Front T5
2 off 8.5 or 9x18 et35ish - 1.5/2" dish Front T5