Johnny, I can't remember if I've declared this, mainly for the reasons that it is illegal without the added extras. IF I hadn't declared it and announced it on here I'd be setting myself up for a few unnecessary lectures, so I'll leave it to you to decide, haha!
I totally agree with the badly aligned HID kits...the blinding blue lights fitted to standard reflector headunits, not even in projector housings, and badly aligned and of illegal colour temps too. I believe there are different types of bulbs 'more suited' to reflector type headlights (with an R after the bulb name/number), but as said, they're still unsuitable.
To go the whole hog and install levellers, washers etc is a big task, and as you say will cost stupid money. I was given these headlights from an ex-Focus owner who had no need for em. He had a HID kit fitted but supplied original bulbs and ballasts so I reverted them back to standard, plug and play fitment, and haven't looked back since. I've been stopped at many checkpoints (pretty common round here!), both day and night, where the cops have had a proper look around the car, and I've driven behind them at night as well, and they've never had any issue to pull me on it. I was asked last week by one, "Is she hard to run?". He was surprised to say the least when I told him it was a 2.0 diesel!
That's my take on it jon-v8. Maybe the legalities will make it a complete no no for you. If you can get a set and try them, I'd go for that. Can always sell them on if you decide against it. Or if you decide then that you can't be doing without them you could look into the retro-fitting of the required extras. I could only vouch for the genuine OEM headlamps, and not the aftermarket kits.
As James says though, it may be that all retro-fitted HID lamps are illegal. I think HIDs are the way forward and all new cars will eventually have them as standard, but until then, it's up to the individual really. And other drivers do appreciate a bit of consideration, hence why I try ensure mine are 'as close to legal as possible'.