Help need advice...would u buys these?

Great price. I think the new kit is ~$750. The are missing dust shields, but that kit may come that way (check website). If they say "not for street use", it is because the caliper pistons don't have dust shields, which is a minor concern. You might be able to wrap them with self-fusing silicone tape to form your own. I haven't read of any aluminum hubs failing, and nice to lower the sprung weight. You do know you will have to change your rear to the 4.5" bolt circle (BBP), or else carry 2 spare tires, and at least buy 2 BBP front wheels.