I downloaded Galacticraft, and looking for some other mods to have a wider range of blocks to build with so i can have a tardis in Single player that feels like something that possibly hasnt been made a million times, but before i start this endeavor, does anyone know if Dalek mod and Galacticraft mesh well? if not any suggestions for mods to supplement what dalek mod gives us to work with? with what i have built with just DM so far, (save is backed up) id rather not instal GC and end up crashing the save, or travel to other places in my tardis to find out have the tardis was lost to the time vortex because of so timey wimey sciencey reasons XD thank you in advance for any info. 

If you've backed your world up, honestly, the best way is just to test it.
Only thing I could think of is that maybe block or dimension IDs will overlap.

so far so good. the other mods have overlaying ids, so far DM is operating smoothly. i hope when i get this interior finished, it looks awesome XD

i havent had any issues with it besides not being able to take your tardis to any galacticraft dimensions until you fly a rocket there and set a waypoint with your tardis there