Hi and welcome to Ninjette!
Rear swingarm and fork-swap from newgen are easy. Be sure to get triple-Ts as well since fork-diameters and offsets are different. Put down towel under headset or something to catch 10-million little ball-bearings! use grease to hold them in place when re-installing.
BTW, can you post beamshot of those headlights? Preferrably onto white garage door.