Likie Elnicko5, i prefer the 2nd list.
I would however drop the KMB from the dread and add in another skorcha or
DCCW.
With BS2 it will hit twice in a 6 turn game, not that reliable
atleast with WS4 the
DCCW will get a nice use, and skorchas dont have to roll to hit, so its a win-win situation.
The zookas on 1 kan unit is great, at low points they do nice damage.
I would throw rokkitz or KMB's onto the other 3 though.
You need a bit of ranged anti-tank (with KMB it means no worry with termies too)
I love dread / kan heavy ork armies, and they allways perform well when used right.
With this much armour at low points the enemy will have a hard time hurting anything to any extent.
I'd also drop the grot prod and take more grots for the unit
Other than that, i like the list
If you want to change ideas though, you could follow what ive posted so far, then drop the 1st dread and add up saved points for a wagon.
At low points AV14 is never fun, let alone when its moving about tank shocking with a death roller.