Hi Jason,
Got a URL for the site where you got the parts from ? The universal plastics I've got look OK and the colours arn't a bad match for the origional tank either. The origional lens & bulb holder are FUBAR and when I went to order them it was gonna cost me about twice that of a UFO headlight assy, so got one of them now. Also the 6V bulb that was fitted as origional is a real weird type and I've only been able to find that as an OEM part, so will stick with the UFO one. Will upload a few new pics once I get my respoked & rimmed wheels back next week.
Cheers,
Andy