Hot wheels track (Fairfield Park SG5)

I bought a second hand one of these (as per picture) from marketplace. Unfortunately a couple of the small black clips were missing and whilst it still will work or need further modifications I don't want to give it to my son as a birthday present. So if anyone would like it as a unit or for parts you're welcome to it. I can leave the batteries in for you. Currently it's dismantled hence I've put the picture up from online.