Thanks Jipe , I get your point regarding Alfine 11 hub. Actually I just talked to the shop owner who had similar opinion of the hub which he has on the road bike. He likes to have dun on the bike and Alfine doesn’t really allow him to. Probably good solution for touring but maybe not the best for street bike.

Regarding rear hub, as I understand it’s the only difficult part to source but the rest like cassette, chain, spokes etc is more easy to find?

Also is there a Shimano hub in 135mm suitable for Birdy?