Whatever happens never go for in-house financing always go for bank financing. BDO comes into mind and maybe PS Bank. Metrobank has been pretty aggressive lately so you might wanna check them out too.
As where to buy your SUV lahat naman ng dealers pareho lang source. In case of Santa Fe lahat yan galing lang sa Ulsan, Korea. Nagkakaiba na lang sa freebies and discounts. I suggest Hyundai Quezon Avenue when I bought my Santa Fe they offered me the best among the dealers I spoken to (Hyundai E. Rod. and Hyundai EDSA) in terms of discounts. Shop around!