For my ST I went with R100GS forks (among other things). If I weren't building this bike into an HPN, I'd keep it exactly the same. The R100GS front end worked out great. I didn't change my centerstand either. I'd also put some thought into a heavier duty rear shock. The stock ST shock is not up to load carrying on unpaved roads. I bent mine in half. I'd say that GS forks are in a completely different league than G/S forks. Much stiffer (and heavier too probably), tubeless front wheel, better brake, GIANT axle, real triple clamps, and also much more easily available.