Tett and Crystal should work nicely. I would use the crystal late and dry hop with it if you plan to dry hop. There is a beer I make that is not quit an imperial Pils, but uses several of the US noble derivatives - had it at Philly for club night. It had Vanguard for bittering, Santium (Tett derivative) at around 30 minutes and lots of crystal late and dry. Nice beer, very much a big Pilsner, but there was that what is this American hop aroma creeping in thing to it.
I think it would would appeal to the IPA drinker and the classic lager drinker.
Sounds a lot like one I make (Vanguard, Santium, Crystal).
Major --I think this will be very good. Tett and Crystal play nicely together.