Series wheels on RRC hubs??

[POD]

I've sold my camper trailer which has Disco 1 steel wheels on Range Rover 'classic' hubs; not trailer hubs with RRC stud pattern but actual original hubs from a 1988 Range Rover. The buyer has a series 3 Land Rover and has asked me if his wheels will be able to go on these hubs; he believes the PCD is the same but unsure about other dimensions. I have no idea. Anyone here able to answer this question please?

[p38arover]

The PCD is the same but I’m not sure about the diameter of the centre hole in the wheel.

[JDNSW]

I can't be certain, but I think it is OK fitting Series wheels to RRC hubs - but not vice versa as the centre projects too far.