Having been 3D printing for nearly 5 years and if there is one thing I will save everyone’s ass is never leave a print job, until you see the first layer gets printed. That first layer is about 80% of the chance of a successful print.
My feelings when it comes to building systems is that you at certain times, use legacy/old/slow hardware. If you can get it working ok and to your needs, then you can move it to newer/faster iron. By that time, it will be optimized and worth the initial effort.