Kelvin's place is conveniently near the airport. I would suggest Grab (like Uber). Depending on car, it can be as low as $9 SGD but you wait a while for the cheaper rides. Increase to $12-$16 SGD and you will be happier. Getting back on track...
Kelvin and his wife are very gracious. I arrived really late (almost 2:00 AM) but they stayed up to welcome me into their home. Kelvin responds quickly and communication is excellent!