I am wondering if you've played any of the SE Hollowbodies? If so how would they compare to the really nice tone from the archtop. I assume the archtop is deeper so that would likely have a significant effect, but the hollowbodies have a version of the 58/15 and I have heard that they have a similar construction, in that they're hollow not semi-hollow.
I have been studying with a jazz teacher for about 18 months, and since I was starting form close to zero, I would never be able to justify any core series guitar, but I could see myself moving from my Ibanez semi-hollow to an SE hollowbody.