50kph+ over speed limit is usually a summons for dangerous driving, which carries a minimum disqualification period of 6 months. If you're super lucky you might get exceeding 100kph, but unlikely. For the record, 40kph over a permanent speed zone and you're walking for 28 days.
35-36kph ish over the limit is 50 demerits (there is no higher level) so you're now also over 100 demerits. I don't know how that plays out with (presumably) the other disqualification you're getting. Excess demerit disqualifications are 3 months.
If you do get a charge of dangerous driving then I think you don't have the option of limited licences for work? I may be wrong... You're definitely out for at least the 28 day disqualification:
http://www.nzta.govt.nz/assets/resou...imited-lic.pdf
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