Quote The Elf:
What problem(s) are you trying to solve?
That was the exact phrase that was running around in my head while I was reading that.
Throwing money around is fun, but I have to question the wisdom of so doing unless and until you have identified a specific issue you want to address.
If the room is up together (Cannot tell just from a list of treatment) I might be looking to add to the choices in your mic locker (Always the place to start once the room is right IMHO), or if your production is plugin heavy then maybe beef up that core 2 with a more modern box?
IHMO, AD/DA is usually not the weak link, transducers often are, so that means monitors and mics, another thought is studio furniture, a good chair or two that are comfortable and do not squeak are worth the cash (Quite a lot of cash), would better lighting maybe help the ergonomics?
Also possibly things like tall stands and such are sometimes very useful, and often missing.
Just some thoughts, it is not always the case that gear lust is the best place to throw the cash.
Audiophiles use phono leads because they are unbalanced people!