I have an order of importance for hardware builds for After Effects:
1 - CPU
2 - RAM
3 - GPU
In modern computing, SSD goes without saying. Buy the biggest you can afford, you'll always want more than you have.
I think the i5 is a mistake. I'd spend more on the CPU, even if it means skimping on the GPU for now. It's easier to upgrade your GPU in the future than the CPU.
32GB of RAM is the minimum I'd consider these days. If you can afford more, do it. If not, try and buy a configuration that allows you to expand in the future, ie if you have 4 RAM slots on your motherboard, get 2 x 16GB RAM modules now, leaving two slots free for expansion.
While Adobe software is making better use of GPU power all the time, their products are notoriously CPU hungry, especially After Effects.
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