Advent Vega for sale comes boxed with all the bits it is running the advent rom but can easily be upgraded to run any rom you choose. Few light scratches on the rear case but screen is mint.
£80.00 ono
Will put pics on later here is a link http://www.ebay.co.uk/ctg/Advent-Vega-512GB-Wi-Fi-10-1in-Black-/103104613

How do you put different roms on this?

This site has all the roms and the info on how to install http://www.tabletroms.com/forums/vega-rom-development/

Some pics of the tablet.

Price drop £60

Final drop £50 will be going on fleabay tomorrow