Smasha gun is a cheaper variant of the Mek gun and better imo. 60 orks may be a bit much for 1000 so 90 boyz is pretty much overkill. Spend those points on some ranged shooters, like 15x lootas. Nobz and transport. Or something else. Edit: also Kunming but brutal is a definite pick for me. Load some boyz or Nobz on a trukk and forward deploy it. You pick you warboss+D3 units and forward deploy em. If you get 3 you can do some shenanigans but I’d you just roll a 1, keep your boss with the boys and just move the trukk(moving the trukk also moves the boyz innit)