Just to "add" a little info, Ive just recieved delivery of a hull kit from models by design, along with a fitting kit, and they actually supply "metcalf mouldings" kits , so save you a bit of a "round the houses", may be worth simply ordering a fitting kit off Dave @ Metcalf.
Postage pirce may be a bit high, as ive just weighed the fittings box and its almost 1kg in weight!
But contains a selection of rail stanchions, base fittings, radar unit, bollards, anchor and associated bits, aerial bases, rail wire adjusters, steering wheel nav lights, and quite a fair bit more and thats without opening the seperate packets and actually looking properly. All white metal items and very little "flash" to remove either.