Sounds really encouraging.
Well, tbh I haven't got an A3 but actively looking as mentioned, but I will definitely be getting them fitted where at all possible, looks like you're the best man for the job. How much can you pick them up for usually, or is that a too loose a question?
What's involved with the Washer jets, wiring, looms, jets, bumper fitting, resistors etc etc or is it more straight forward than it sounds?
Guessing you've done this a handful of times...
Let me know if you'd rather PM btw buddy...
Ta.