There are a lot of Traveller deckplans on the web, highly suitable for adaption for DW gaming. The smaller ships (like the venerable Suleiman) could make PC vessels as a TARDIS alternative while the larger craft are suited to use as adventure locations.
Here are some more deckplans (link) for Star Trek but eminently suited to be reused in DW, either as venues for adventures (the stations and larger ships) or for use as PC vessels for parties without TARDISes; the Danube especially seems a good candidate as a time-ship (with or without the Trek nacelles). Excellent quality and level of detail.
Time, time,time, see what’s become of me. While I looked around for my possibilities... My AITAS files.