You need some old style enamel signs like "Shell" etc to put on the wall. A collection of those old style oil jugs that Castrol use to do...you can still get them
try places like Holden
Holden Classics Have a look at Longstone Tyres
Longstone Tyres they have some great slightly saucy old adverts for free!
If you have room, an old battered sofa and a coffee machine is a good idea!
Oh....and to go with the Morgan, a Pashley Guvnor classic bicycle, 1930's style and handmade in England not that far from Malvern by a company that was around in the early Morgan years!
Pashley 
