Bought too many toys for my boys, so can sell u a few if u r in interested. Let me know if u r keen in these BNIB lego duplo:
LEGO DUPLO My First Construction Site 10518 $22
LEGO DUPLO Number Train 10558 $26
LEGO DUPLO My First Fire Station 6138 $29
Train set may suit ur requirements.
Prices stated r best price, self collect at sengkang rivervale plaza.