that dodgy one on ebay at the moment has reversed colours,some people prefer untouched original when it comes to re-sale remember,but if it's a keeper I don't see it being an issue
I like the head of the first one but don’t like the colours of the two ships on the base , but at the end of the day it is your machine and you can do whatever you like to it .
When I did my space invaders , I put on colours what I liked and not the colours what should be on it