Are T5 Kombi 2+1 seats a direct fit in my T6.1 van?

[Desmoben]

As per title. I’m about to buy a new T6.1 swb and also have the opportunity to buy a clean, used set of 2+1 kombi seats from a T5 with all the bits and bobs at the right price and I plan having all seats recovered anyway.
Besides having to drill out the bolt holes in the floor - are these a direct fit?
Thanks,