I wouldn't bother with a shokk/zzap/big zzap junka as any roll of 11 or 12 are disgarded.
It's AV11 and in
apoc, espcially if it is equipped with a
KFF/deffrolla, it'll be dead 1st turn.
It's a fun unit, other than that, i won't be building one, i'd rather spend my time converting up/working on a kustom battle fortress w/3x supa kannons