Yeah buy second hand, I swapped out my leaky rst gilas for a £100 set of fox f100s from here after i found the rst's had a busted damper when they were apart. Nearly half the weight and fully serviceable.
Saying that, suntour forks get pretty unfair reviews, sure they're cheap, but they are pretty good for the money in my experience. But I'm a lightweight, heavier types may work em harder than me?