N18 Ork Goliath Gang

Looks about right, I did the same thing with Tyrant's Own on the Nob and Dermal Hardening on the rest for proppa 'ard boyz, I even used Unborn downgrades on a Juve to make a Grot cos I was trying to make rules for models from the Kommando kit. Including the flamer and heavy stubber meant I only ended up with 5 ded'ard boyz and a sneaky grot in 1000 points, but your list looks pretty viable, even scary with 8 of them. Enjoy!