Hey guys! So I'm buying a costumized bass from a designer, which he made from a P-bass neck, a Sterling's body, MM Seymon Duncan pup and some other goodies
The thing is: he made the bass so that he could SOLELY play on C standard tuning (something about Queen of The Stone Age

), so he went to a luthier and got it setup for C...
My question is: will I be able to play/tune it in/to E standard without damaging the bass, or will I have to go make a new nut and get a setup for the truss rod at a bass shop/luthier?
P.S: I don't know the gauge he has now, but he told me he used the 5 STRING watchamacallit: Bought a 5 sting pack, and threw away the G string (ahah). Will I still be able to use normal string gauges and play at E tuning?
Thanks in advance