The following VW T5 part numbers may be of use to you:

Raised Step
7H0 863 725 K 9B9
for ply lined vans,  the inside lip will fit over the top of your floor
Step Light 
4B0 947 415 A
the raised step does not include a light but it has a hole for one. this one.
Rear Tread Plate - Tailgate 
7H0 863 485 B 9B9

Rear Tread Plate - Barndoors 
7H0 863 485 C 9B9