Hand-built racer from 1957 (looks like parts from a Triang racer)

This racer was a birthday gift for my hubby when he turned 8 years old. It looks like it was made from scavanged Triang racer parts. Can anyone confirm that the grill was from a Triang ---if not, from where could it have come? Can anyone give an estimate of the worth of this car? Have there been similar cars sold like this in the past? This was made in 1957 by tinsmith Kline in Landisville, PA (USA) in 1957.