Best to ask the RS1600i Registrar...

Valuing a car in the current climate is hard and a 16i even harder as they're not exactly the most sought after of RS's....

Get it for as cheap as you can- if its that good and is as original and in good nick - 3k tops maybe???? I wouldn't spend more than that.

If its a well known good show car maybe a bit more.

If its not as original a lot less.