Well , it is not hard to find one either from here or specially ebay. The only problem is the condition of the car (rust) or the price .
The Sprint is the coupe version of Alfasud and since it had the same production line they also inherited the rust problems . Usually models up to 1983 ( with metal bumpers) had the worst problems with rust although there are exceptions. Rust was worst on rear wings and front windscreen frames due to lack of treatment ( cleaning water gateways for example) . So if you find one , take a good look underneath the car and all the usual places . If is obvious then there is more, if not then it is hidden.
Generally is an easy car to maintain , apart form rust , with lots of part even from Alfa 33 .
Sprint 1.7 '85