Very nice approach! I like it a lot. We have 60m to the footpath next to our property. 20m of that with privet hedge owned by the city (unfortunately typically trimmed), another 15m of flowering hedge with large shrubs and a small beech tree. These are only trimmed a little towards the footpath. After that, on the city side there is a strip of lawn and on our side the privacy screen is continued by about 10-15m of lilac hedge and elderberry (up to 7m high) and a still quite young flowering hedge (forsythia, weigela, privet, smoke bush, summer lilac, buttercup, etc.) all the way to the front. A dream for birds and insects, and there is always something blooming from March to November.
And in the front garden I have a single privet that I once received as a gift and it actually blooms quite nicely in white.
Show me a picture at the end of summer of how it has developed with you!