First post so hi all

Been thinking of starting a escort van turbo conversion. Can anyone tell me whats the best van to start with (model/mk ect) and what kinda performance im gonner be looking at with a 1600 Turbo in there. was also wondering instead of a turbo could I go for bigger and maby use a cosworth engine? If anyones done anything to a van or has any idears there very welcome

Cheers People.