as far as LED headlights with LED angel eyes they are a good place to start.
Depo 00 03 BMW E53 x5 D2S Xenon HID Headlight LED Angel Halo LED Corner Signal | eBay

and search for LED tail lights theres a few good ones around and theres LED side markers on there too if you search a little bit, usually they come up faster if you type in "e53 LED side markers" or "e53 led tail light" etc etc.