I quite like the idea of building a single line refuelling point as a working diorama. This idea has come from one or two layouts for showing off and photographing engine collections.
I have picked a diesel theme because I like Diesel engines. The following products I will be using are:
Peco Track
Scenecraft Refuelling point
plasticard for making concrete slabs and walkways
Trackside lighting and junction boxes
Ballast, ground cover and scenery
and of course workmen, a scratchbuilt run down shed using wooden coffee stick and most importantly my Sentinel engines.