I'm doing the retrofit to my R32 lights. I am assuming you have projectors lights (which most R32s have).
Get the FX-R projectors (RHS, 3" lens) from TRS. They go on with not much effort, don't need to make brackets up. Just need to tap one existing hole and drill + tap another, and they go straight onto the adjusters. Also order a pair of AMP > D2S straight adaptors (this). Yes you can find ones in China for $5 but you have to wait 1 month for them to come, whereas the TRS stuff usually turns up within two weeks.
Get D2S HID kit, like this one. 4300K temperature is best. I found that recently, the cheap HID 4300K bulbs aren't 4300K but more yellow. Good to invest in something better I suppose. I will find out very soon if the bulbs in that kit are good.
For dual high beam, I wired up an 'anti-flasher' relay wiring for the headlights using three relays and diodes. It allows you to flash high beams while still retaining the lowbeam (so essentially they act as two separate circuits, so the lows don't turn off when you high beam). Might be a bit more complicated approach, but then you can always use something from TRS.
Butyl rubber glue stuff you can source locally.