I can now confirm that Ford Zetec-E valve shims are 27.5mm in diameter, the same as stock 2JZ shims. Only the solid lifter variant uses shims. They cost considerably less, too. Zetec-E engines were found in European Market Ford Mondeo's, and possibly US Market Ford Contours (rebadged Mondeo). See the below picture:
No digital readout i'm afraid, as the battery died :/
Still - you now have a verified alternative!

No digital readout i'm afraid, as the battery died :/
Still - you now have a verified alternative!