Very simple suggestion, Could the Hartnell Side Door be made with the BOTI effect? By that, I mean that when you right-click it, it opens one door instead of just spawning you outside the TARDIS. Essentially, what I'm asking for it a version Brachaki Roundel Door for TARDIS's with odd numbered walls. a one block door, instead of two.

It would work the same as all the other BOTI doors, possible very similar to the police Box doors