I could but the reason I didn't was several reasons. First the single light does both sides on it's own and this way I could take a single feed off the passenger front and not split it between 2 lights or having to access the drivers side footwell which was harder to reach. I did toy with the idea of 2 separate lights but figured it was more work for the same result.
Hi re the rear light I have recently fitted one to mine and it lights up the rear very nicely. Did it with a Transit courtesy light off Ebay wired through the centre tunnel to the front passenger footwell light so it goes on/off with the door etc..