head lamps must comply to ADR regulations in Australia UK are not accepted.
Look at the arrow direction on local units UK are opposite these lights are not fog lamp units.
Sliding doors you can have both sides but with on e only door being on the right hand side may cause conflict with the Local DOT ans EPA regulations as this would be deemed the leading door. It would be easier to order a RHD export VW as this at least would compliant, Euro 4 emission standards must be included on the vehicle if it's a stand alone import. All paper work from original seller must be included for import taxation the bonus is you can apply for GST exemption in the UK as the unit is tax exempt for export you need an export broker to do the paper work local sales rep would not a the slightest clue
Warranty forget it unless your high up in the ranks as you would be bring in a model that is already sold in Australia irrespectively of it being fitted out as an RV The standard model is what the regulators will look at VW not happy little chappies on this one.
The RV has a lighter suspension for ride the lower KW engine is for this model as to fuel economy but in part based on weight configurations for the front axle loadings, for example your loading capacity on a transporter delivery van is rated for max GVM between 2.8 to 3.2 T but the van remains in the 2500 series as the options from 2.5 weight variants to 3.2 t are optional The above vehicle has a loading capacity of from the SWB unit 1,391Kg to the LWB unit 1311Kg they are registered as 2.5 or 2.8t GVM.

Kombi
GVW 2.6 to 3.2 the GVM ranges from 2.6 to 2.8 GVW based on its GVM Ranging from SWB units at 1326 Kg to 1236Kg

Shuttles are limited to two body variants in Australia unless the newest model has offered more
SWB unit has a higher GVM of 1326Kg the LWB unit or MWB unit in Australia has a lower GVW due to the longer wheel base it can be ordered to match the SWB unit by ordering a higher front and rear axle Kg rating special orders.

If you look at the UK options you will find differences in the mechanical make up you need to match one for AUS ratings or it may not be accepted by the DOT as that model has not been through the ADR regulators for compliance to EPA regulations etc. little things like crash testings etc.
One thing to consider both Kombi and shuttle are classed as passenger carrying vehicles there are now speed limiters on the VW in Australia under this class, of vehicle unless you exceed 3.251KG limiters may apply in different states but to the best of my knowledge with out checking up speed limiters are not required on the vans in your class .
still follow the above links for import and requirements I have not done this since 1998 except for 4.4 GVM and 5 Tonne special purpose vans.
Richard
Australian RHD lighting ambiance
RHD
R side <- <- _ -> L side ->->->