That particular kit is only really suitable for up-in-your face closeups. No throw power at all.
Here's a cheap & basic three-point lighting kit:
linkage
The bulbs that come with it are all daylight-ish colour, but you can spring a few bucks down at Home Depot and get replacement bulbs in different kelvins to swap out when you need/want to. You should have an assortment of bulbs anyway, for general matching, in your indie lighting kit.
The build quality of the lightstands ain't that great, but the softboxes aren't that heavy either - so just take care of them and they'll last. You'll want to keep a tube of epoxy on hand, for when the plastic knobs start to slip a bit. No big deal.
Those lights will last you a while, for a general starter set.
You'll definitely want sandbags to keep these lights in place. With softboxes on, these stands are quite top-heavy. They are also very lightweight, so a small bump can send them toppling. You can get empty sandbags here (
empty sandbags) and buy a huge bag of pea-gravel down at Home Depot for about $5 to fill the bags with. (Don't use sand - that will go all over the place. Rinsed pea-gravel's much better choice) You can prolly find these sandbags cheaper on Ebay, btw.
The above is well below your max budget of $500. Maybe spend some bux on other lighting tools, such as bounceboards (or a 2' x 4' white foam board from HD for $5) or diffusion?
What in particular is it about "low light" lenses that you like? I hope it's not that you think you can get away without lighting properly.
