Which do you think you need more? High core count or higher clock speed, or balance of both?

Many of us use these in our labs. Dell servers, Cisco servers, etc. eBay, r/homelabsales and others are great resources for finding the "non-standard part".

The best thing I can suggest is selling it to me. With the cost of electricity, I am doing you a favor and you can just count the monthly savings. $50 sounds fair considering how much I'm going to spend running it.

Just curious, what kind of custom app are you developing?