Asking first if replacing the Toilet Inlet and Outlet valve requires a Plumber for the Insurance?
As for the DIY, the push button for the Outlet Valve broke and also the Inlet Valve seems to keep whistling like its loading water continuously and wanted to check if this parts would be a good replacement for this type of toilet.
Outlet Valve
Inlet Valve
Existing valve (Don't mind the black soft wire. It's a temporary workaround I came up with)