Hello everyone as we know I have already wrote chapter 16, this is to go over the the exterior and interior of MC's Tardis.
For Exterior I was thinking the old phone booths I will include an image for those who are not sure.
As for interior I was leaning towards the 8th incarnations interior, although it appeared only in the movie I always thought it was cool looking.
I used it when playing a little mod for fallout new vagas called Fallout who Vagas, it looks really good.
Anyway i should point out that I am unsure if the interior should change for different Incarnations, as MC said a new TARDIS model does not but MCs was born from The doctor's so it would make sense that it would share his Tardis trait for changing the interior to suit the incarnation.