Phase 1 dipped headlights are not brilliant but mine are OK with Phillips Bluevision Plus (50% light more than standard, pure white).
Am thinking of trying the Osram Nightbreakers (90% more than standard, very slightly whiter)
I use autobulbsdirect.co.uk but you'll find cheaper.
From what I understand not having washers or auto-leveling is not an MOT fail so long as HIDs are aligned properly.
Even if it failed a direct-replacement kit can be swapped back to standard in time for the free re-test.
However, I think there is a legal requirement to have washers and auto-leveling with HIDs and that the entire HID-equipped headlight unit meets strict testing for beam pattern etc so the police/VOSA could do you for HID bulb replacement kit if they wanted to and your insurance may get sniffy as it's considered an illegal mod.
MOT is just a basic checklist, it does not prove your car is legal for use on the roads.