Here is an interesting model aircraft display option from Coastal Kits.
Looking to display your B-17 and ground support vehicles, Coastal Kits may have the display base for you.
Coastal Kits based in Blackpool [UK] has released a fine looking section of carrier deck and a section of tarmac for display purposes. They are a generous size as well. The bases are available in both 1/72 and 1/48 scales.