D50 Light box and D50 lightubes

Hi,
I am looking for an illuminated light box with a near perfect color
rendition. Budget is not a factor.Macbeth used to make great ones but
they have discointinued this line of products ; (

Would you know a good manufacturer of :
- lightables
- D50 light tubes with a near perfect color rendition index(CRI)
(Note : I knew about some manufacturer who claim they have a good CRI ,
but unfortunately their emission spectrum was actually very spiky hence
showed different color for samples that actually looked perfectly
similar when observed under natural light)

Thanks

FG