KYB gas-a-just shocks, are they a good choice?

Hey guy i'm doing some reaserch about a few things before i get into swapping the motor in my scamp. One place that i need to adress is shocks and i always see the KYB gas-a-just shocks advertised everywhere and am wondering if they would be the way to go. also leaf springs will need replacing also anyone know who makes good ones?? Thanks a lot, Greg