Hello,
Split fixed asset acquisition cost into two FA components (in your case by 750/750) using FA reclass. journal standard functionality,
Then setup db1 =99.99% for first component and db1 =4% for the second component.
Change for the second component starting depr. date to + 1Year .
Both FA components should be assigned to the main fixed asset (after reclasification main asset book value will stay =0)
BR,
Saulius