74 year old vintage tractor left in a barn for 20 years... Will it start??

I saw an ad for a 1946 McCormick Farmall for sale so I went to investigate.
It was pushed into a shed when it stopped running 20 years ago, the farmer needed the shed space for his new boat so he just wanted it gone.

I buy all my tools, oils and filters from Supercheap Auto.
Excellent value and outstanding quality- https://www.supercheapauto.co.nz/

They also sell Gulf Western oils, my preferred brand - https://www.supercheapauto.co.nz/brands/gulf-western