It is good to hear from another Nordie owner.
I'm sure you will get a brake lever from Bob Wright in the UK, there is a link to his shop address on the website, also you can download a Nordwest manual from this site.
Lucky for me I can find a small foundry here in Africa who will cast a brake lever and other small parts very cheaply.
Maybe you will find something on 125ccm Aprilias or Moto Guzzis Quota.
As i know they share the same Grimeca calipers, so it could be possible that the pump is also the same. So the lever should fit. But maybe it looks a little bit different.
Thanks I ordered the importer of Gilera of Portugal one lever will cost 42 euros and takes 9 days to arrive but that's okay,
now I have another problem is much oil is coming out of the air filter housing to the arm of the suspension I think is not normal, I know that the vent goes into the engine air cleaner box but it should not fill the floor of oil?