We have the village on Trenzalore and we have the graveyards

Why not have a big massive TARDIS replica spawn on Trenzalore in a huge mountain and if we go inside it we enter the doctors TARDIS but with his time stream

 Already in the game pal.

No it isn't. Someone just built it on DMU.
I deliberately didn't add it tho.

 I already built it :P You can find it on DMU Public on Trenzalore  3020 68 -3030

I can't get on DMU for some reason it says failed to verify surname

I'll go and build one on my world and send it here

 What is your minecraft username please? I’ll have a look