You really can't go wrong with BNR and their warranty. Although you have to buy the oil line kit and a tune is highly suggested, it will truly be worth it in the end with your car being a bit peppier and having a great turbo for daily driving. Can't BNR just rebuild a VF40 to OEM spec? VF40's are water cooled last I knew.
Otherwise, i'd go with 6starspeed.