I have the R&G one on mine. Perfectly good and does the job as good as any other. The one thing I will warn you about though is the fact that you will get spray up your back from the rear wheel. I do have a slightly smaller plate than stock but I imagine it would still be bad with a full sized one.
It's not so bad in good weather but when it rains I've had dirty water as far up as the back of my helmet. Not a deal breaker for me personally but just something to consider.
As for L.E.D indicators, most people seem to just go for cheap chinese ones off fleabay. I tried going for a more premium set and bought the Oxford Saturns but I honestly couldn't recommend them 😔 They are bright enough and look good but they're a nightmare for falling in half at the slightest catch. I think it's a kind of fail safe feature to stop then snapping but most of the time just ends up being annoying. Not what i expected for £35 a pair 😒