Stepper Part Blac edition & X3?

I know my problem is Y A4988 on my SD2
I searched some on line but they all require soldering? Anyplace sell them ready to go?

Also I looked at Ian X3 deal what features types do I need to match to the SD2 (pinout connections there are 4 options)

I am thinking swap with a black edition board does this help

Then if another one goes is there a benefit to buying a $100 X3 board for less heat better current load and just swap over all my current SD2 parts? they all plug in or I need new items like motors or stepper boards?

Are there any benefit to getting better stepper motors (like ones that handle higher speeds and accuracies?)