What do you think about this brake kit?

I intend to convert my 70 Charger from manual drums to power disc brakes. I found this kit on eBay and was wondering if what thoughts anybody might have. And what else would I need to convert to power instead from manual.
http://cgi.ebay.com/ebaymotors/1966-1967-1968-Dodge-Charger-Disc-Brake-Slotted-Kit-/140424166891?cmd=ViewItem&pt=Motors_Car_Truck_Parts_Accessories&hash=item20b1eebdeb

Thats a good price.I converted a car over to manual disc.I spend $40.00 on used spindles and about $210.00 on everything else.Oh and that was 5 years ago.

before or if you buy make sure to find out what the calipers and pads are the same as in case you ever need to replace them