Intrepid and Fearless are a great subject to model. They always attract loads of interest at shows and when they are on the water. At 1:96 scale it is possible quite easily to make everything work. Thus davits, ballast tanks, anchor, lights, landing craft are all operational on this model. It would be possible to spin the blades of helicopters as well if you want. It's a large model but still carriable and it fits in an estate car!
Unfortunately I'm not sure how active Sirmar is now. I did communicate with Barry there but never managed to buy any fittings from him. Fortunately I had bought a hull and the majority of the fittings together on Ebay. Things that were not present I made myself or cast copies. It is not a craft that has huge amounts of complex fittings. In this Falklands form four sea cat launchers and 2 bofors are perhaps the most difficult parts if you had to make things and those parts are available elsewhere. Scalewarships website was a useful source of grills and vents and fore deck fittings.
I notice there is a guy in Gibraltar who makes a 1/72 hull for Intrepid/ Fearless. Now there would be a project - 8ft 6 inches in length......