it will be total waste of monies.
Toyota Duet 23 year old (JDM vehicles) does not have any new parts support for engine / suspension & cosmetics. local scrapyards are source for repair parts for all JDM vehicles.
Better choice will be a PKDM Suzuki vehicle to fit in available digits. Suzuki have new spare parts support for vehicles as old as 1995 SJ 410 Jeep, Van Bolan, Mini Truck Ravi, hatch backs as Khyber & Mehran.