Also, I can tell you that 8GB is enough, until you start running multiple plugins & soft synths simultaneously.
Agreed. Not to bash Darkglass/Neural, but if the OP wants to run that VST in real time (small buffer size), 8 GB is gonna choke based on my experience with 16 GB devices. I'm not sure where the trade-off is between chip speed and RAM, where increasing one by a factor of X reduces the need for the other by a factor of Y, but I bet the RAM would be the bottleneck in this case. Some audio software and/or processes don't benefit from multi-core processing. I'd say 16 GB minimum is probably best, unless the OP is certain of the software and recording process to be used. I'm not saying 8 won't work, but if there's any question, 16 is going to be worth the extra $.