As well as Battalion memorabilia and medals, she hoped the museum would include an area where whānau could display personal mementos, as well as a virtual zone with videos, audio recordings and online database access – plus access to the existing Battalion website and a chance for whānau to add to Battalion whakapapa.
Any wall of honour should include the names of all servicemen and women who lost their lives, she said.
Currently living in Auckland, Peehikuru and her father, Jim Porter, hoped to be part of the opening in less than two years' time.
Consultation is underway with representatives of the battalion's five companies and final plans have yet to be drawn up.
Waitangi National Trust chief executive Greg McManus said the design would be sensitive to the landscape and history of the Treaty Grounds.
Jones said money had been set aside as part of the NZ First-Labour coalition agreement but would not say how much it was expected to cost.
Few, if any, veterans of the Battalion remain. The last surviving member of Northland's A Company, Charlie Petera, of Ngataki, died in 2016 at the age of 92. Two years earlier Moerewa's Solomon Te Whata died aged 96.
The late Sir James Henare, of Motatau in Northland, was the Battalion's last commanding officer. The MP for Tāmaki Makaurau, Peeni Henare, is one of his grandsons.