Well Kelvin in answer to your point the Black & Gold were built the same with the shorter flight deck ( to save weight and improve stability) and both were subsequently fitted with the extension. If you consider that a separate version fine by me, but then by the same token there are about a DOZEN other versions.

Without going into great detail, the Rovers had modifications such as the following - not in order or preference, but MOST would be noticeable on a model in our scale.

The Suez canal aperture and door were removed and hull plated over.

Two 20mm gun platforms were fitted one each forward port and stbd (forward of RASCO) they were about 2 metres square and about 10 feet off the deck on pedestals. They were later removed.

The bridge wings were extended aft over the lifeboats and 20mm guns fitted there (replacing those as above).

The Viking crash boat was removed, but deck cutaway left in place. The deck forward of bridge front was extended on port side to take davit and 18ft Searider inflatable rescue boat.

Later when SOLAS rules changed, similar extension on Starboard side and rescue boat fitted there again with davit.

The FFO stern rig (rig 9) was removed including rollers over the stern.

The SATCOM dome was fitted on pedestal on top of the RAS gantry.

The RAS deck had a 10 ft x 10ft x 5ft high ATW fitted for conversion to Probe rig fuelling (fitted just aft of RASCO)

The VCB cutaway was filled in, plated in and converted to a garbarge compactor and incinerator.

Towards the end on Gold & Black a very large SAT TV dome was fitted on the top of the bridge. One ship was done and they found that when at the normal berth in Falklands the funnel masked the reception, so on the other ship when converted the dome was on the other side of the deck. Very easily spotted.

Right at the end in Gold & Black they had the new lifeboats fitted. The aft RAS gantry in way of rigs 7 & 8 was cut off, the crane removed, the deck extended and the new lifeboats fitted further aft than old ones which were cut off. Parts of the accommodation openings were plated in in way of the skates of the new lifeboats.

For the Falklands they had a hydraulic telescopic crane fitted midships on the RAS deck - used for lifting the large hose on board from the SPM in Mare Harbour. The bulwarks were strengthened and part of guardrails area plated in. The two were slightly different though.

well there you go - just a few that I remember - they should keep the model makers happy with conversions.

Best look at photos - decide a YEAR and go from there!!

And ONE that DID NOT GET DONE was a jumbo-isation, not in length but in height, as a proposal was made to insert a whole deck level in at 01 Deck level to provide badly needed extra accommodation, a staff room etc. I was tasked with writing this up, but glad in the end it was rejected.