Performance online disc brake conversion kit

Did a search and couldn't find much information on this kit. I have a 70 duster and I'm looking for a good disc brake conversion kit for the front. I really like the looks of the Performance online kit with the tubular upper control arms as they give 4 degrees of positive caster to boot. Has anyone used their kits and can you tell me how you like them? Also, any other recommendations of conversion kits that work really well? I think cpp makes a similar kit.

A lot of these kits are junk. In my opinion, stay with the more well known suppliers that are road proven and have availibility of spare parts and support. Wilwood, SSBC, Dr.Diff, etc.. are reputable suppliers. A little more expensive perhaps, but, you get what you paid for.