There's a new public domain Elvis box set out in the UK called "Golden Boy - 146 Elvis Originals", which is a 10 CD set featuring all tracks from 1954 to 1960, and also 20 Elvis tribute tracks from the time, such as Janis Martin's "My Boy Elvis." Ridiculously low price, but not sure what masters have been used.
http://www.amazon.co.uk/gp/product/B...SIN=B004FK2MK2