I think that getting some CVD's would be good. I run the standard length CVD's from FLM and they work beautifully. No sign of wear at all, aside from scratching at the CVD balls. They don't make the regular length anymore though, so unless FLM does custom work, you would have to buy the extended rear arms so you could use the extended CVD's from FLM.
I can't really afford the CVD's. It costs about $15 for dogbones, axles, and 2 drive cups which will last me about 2 years, so I think I'd rather stick with those. I'm going to try the newer sliders first, though, unless they are proven to not be worth the time.