Something I noticed a while back and noticed again in Doe_Killer's most recent video is that the console in the DM 2013 A TARDIS is off centre. It should be 1 block forwards. 

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As you can see in this image which I found on google, the Steel blocks are visible. The base of the console should cover this perfectly, but the console is actually a block back. 

Also, what happened to DM 2013 B?