I think no harm getting a 2nd opinion...u can get it done less than S$200 for unit auspicious direction checking. Usually I think should start finding the unit with auspicious direction that suits u as mentioned, with the unit selection, than renvoation wise can start at a later date after the floorplan FSM audit, reason being renovation can help to change internal of the unit(but to certain extent only, if yr toilet at centre of house, than cannot change la )and the the direction of the unit cannot be changed when u decide to buy the place. having said that, if u feel u like the house when u step in, most probably the house may suit u best. For me, my FS advises me to select unit with certain direction, but when we saw a unit we like and feel good in it without being the best direction as FS advises, we still go ahead and buy it anyway LOL )