I like where your head is at OP, I would add the following cards, cause they are just generally strong cards, which is what you typically want in a reno deck:
Zombie Chow
Dark Peddler
Imp Gang Boss
Piloted Shredder
Hellfire
Shadowflame
Loatheb
Sludge Belcher
I would cut the following to make room:
Bluegill Warrior
Pint-Sized Summoner
Shattered Sun Cleric
Tomb Spider
Gnomish Investor
Bomb Lobber
Twilight Drake
Azure Drake