Benjamin Isaac Henriques - Name and birth/death details

There is only one Benjamin Henriques in the Victorian BDM death online search results.
Family name
Family name: HENRIQUES
Given name(s): Benjamin
Event: deaths
Mother's name / Spouse's name: <Unknown Family Name>, Abigail
Mother's family name at birth: HENRIQUES
Father's name: <Unknown Family Name>, Moses
Place of birth: JAM
Place of death:
Spouse at Death: <Unknown Family Name>
Age at Death: 74
Reg. year: 1860
Reg. number: 4963/1860

https://my.rio.bdm.vic.gov.au/efamily-history/669b4c01742fa61f9f900...

I checked NSW BDM records as Victoria didn't became a separate state from NSW until on 1 July 1851, however there are no Benjamin Henriques in the NSW BDM family search death search results at all.
Therefore there does not appear to be any verification of the claimed 1840 death date.

https://www.findagrave.com/memorial/144527695/benjamin-henriques

Details match the FamilySearch profile https://www.familysearch.org/tree/person/LL4V-2GM
And the Victorian BDM death register
https://my.rio.bdm.vic.gov.au/efamily-history/669b4c01742fa61f9f900...

At this point in time the details of
Benjamin Isaac Henriques
Gender: Male
Birth: 1775
Death: May 30, 1840 (64-65)

And the FamilySearch profile
Benjamin Israel Quixano Henriques
Birth: 1790 Kingston, Jamaica
Death: 10 April 1860 Richmond, Victoria, Australia

Determing the correct details require resolution of the following problems:

Age at death in Victorian BDM is 74 which means that birth year should be either 1785 or 1786 being that the year that the death is registered is 1860 which doesn’t match either.
Only Benjamin is listed as a forname, so can't differentiate between the middle names.
Disclaimer: Year of registration does not mean year of death. Some registrations have been know to of occurred years after the actual death had occurred, only purchasing the actual certificate will verify the actual date of death.
Findagrave details do include a copy of the Newspaper death notive and a photo of the headstone confirming the 10/4/1860 death at Richmond Victoria
These are the family members claimed on findagrave

Parents
Moses Israel Henriques
1740 – unknown

Abigail Quixano Henriques
1748–1836

Spouse

Abigail Mesquita Henriques
1792–1857

Children
Cordelia Henriquez Ford
1832–1882

There's also an outstanding resolution required in a discussion about the parentage of Rosa Sara Smith with his son, Nathaniel-Henriques being on the list of profiles being discussed>
Nathaniel Henriques

However the resolution of Benjamin Isaac Henriques shouldn't have any bearing upon resolving that parentage issue. One shouldn't have any effect upon the other.