The V2 uses a 4:1 esc, where the old one had 4 separate ones. The motors just go to labelled tags on the ESC board, it clearly tells you which pads to fix to, the actual motor wire hookup order is not that important, as you will set the motor direction in Betaflight.
The FC then sits on top, joined by a plugged jumper cable.
It’s actually simpler since you just need to solder the connections for the VTX to the FC board, the rest is plug in.
You will only mess up components if you apply power incorrectly or over solder the pads, shorting the board. Take your time, don’t apply too much heat and if possible practice first if you are not up to speed in soldering pads on circuit boards. It’s not too hard to do.