Details on the actual production and availability of these are coming, but I approached a local forum member about the possibility of building as close to a plug-n-play kit for the E30 5-lug conversion as possible. He came damn close.
These are E36 hubs and brakes installed onto an E30 stock spindle.
Here is the full flickr set:
Warning: have a tube sock handy.
Fully installed. A hex cap screw holds on the cover/key. Everything is SS:

Key removed showing the hub nut/spacer itself.

Spanner tool for installing/removing the nut/spacer:

Spanner tool installed in hub:

A little machining of the caliper bracket was required to clear the stock mounts, caliper adapter visible installed on the spindle:

Fully Assembled:

Spacer/Nut. Threaded to fit stock E30 stub axle:

In all it's glory:

Enlarged backing plate to compensate for the E36 hub/bearing. Presses onto the stock stub axle:

Face of the back plate. Raised area is the outside diameter of the inner race:

Caliper bracket to fit E36 calipers on E30 spindle:

Fitment with ABS sensor:

Just enough clearance:
These are E36 hubs and brakes installed onto an E30 stock spindle.
Here is the full flickr set:
Warning: have a tube sock handy.
Fully installed. A hex cap screw holds on the cover/key. Everything is SS:

Key removed showing the hub nut/spacer itself.

Spanner tool for installing/removing the nut/spacer:

Spanner tool installed in hub:

A little machining of the caliper bracket was required to clear the stock mounts, caliper adapter visible installed on the spindle:

Fully Assembled:

Spacer/Nut. Threaded to fit stock E30 stub axle:

In all it's glory:

Enlarged backing plate to compensate for the E36 hub/bearing. Presses onto the stock stub axle:

Face of the back plate. Raised area is the outside diameter of the inner race:

Caliper bracket to fit E36 calipers on E30 spindle:

Fitment with ABS sensor:

Just enough clearance:

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