HI there
Imps are still about, I cant say how many were sold in nz but it was a heap. They were 'built' here by several places, Todd motor company in Petone was one of the assembly plants here.
The blue van is still about, Simon drives it most days, he still works at the airport so its parked out there somewhere each day, he also owns a Ginetta G15 which is an Imp based kit car.
Tidyish (but not restored) Imps have been going for around 2-3k (from memory) online, obviously the better they are the more people paid. A stiletto just sold on TM for 9k. Some may say pricey for a non road going car (its just been off the road, thats all I believe) but its a coupe model so is a little special. I belive all vans and coupes were private imports over the years.
Ive got a van also, tried selling it for 5k but no takers, has rust in the floor area