Looks good! Though I'd hate to lose the versatility for the Eldar and Ork list. Maybe it's an idea to give the "elite" 2 upgrades in weaponskill and/or ballistic skill instead of one for both?
To me such a rule would certainly fit an elite role better, someone specialised in either shooting or close combat fighting, instead of being a generic "better at everything but still not really awesome at anything" which makes no sense for a lot of gangers too. (though with the suggestion it is still a valid option if you so desire), but I would like to have the choice in that instead of having to hire a "generic elite"